No, I don't think people realize how high 4% is; You have to lose one or two 90% chance events, especially health events, to realize the human brain is really shit at understanding probability.

I've accepted the probability of death due Americans need to keep the stock market in check..
I'd be careful about what lessons you draw from probability. TLDR - the odds overwhelming suggest you will be fine. If shit hits the fan, that's very, very good for the world in the long run.
A 4% lethality rate is pretty high. We would never accept that for air travel, food safety, or any other form of regulation. 99.999% is not acceptable in most situations. The government moves when the odds get into this range.
As far as 4% lethality goes - isn't it odd no young children have been affected by this virus? Are they somehow immune to the secondary effects of coronavirus or are we just not hearing about babies dying? I'm betting it's the former, and that lethality is greatly affected by demographics and environmental factors. The virus seems to want to kill old people the most. So if the overall 4% lethality rate is the aggregate of all demographics, I'd be more worried about lethality for people in my own demographic group.
I think I read somewhere it's like 14% for people 70+ and 1% for people 30 - 50. 1% is still pretty high, but it probably won't kill me or anyone I know.
With regards to the probability of death, that probability only applies if you get the virus. Some scientists at Harvard are speculating 40% - 70% of the world will get the virus, which seems like an odd figure. If that's true, does that mean some areas will be hit harder than others? Iran, South Korea, China, Italy - one thing they all have in common is incredibly bad air quality. Maybe it's easier to spread in places that are heavily industrialized and people live a certain way. I don't think the Harvard people have a strong claim to understanding the role of environmental factors, it's still too early.
So let's say you are someone in your 30s, you live in a place where the air quality is pretty good compared to the rest of the world, and people around you practice basic sanitation. What are the odds of contracting the virus and dying from it? Assuming 50% of people in North America will contract it, that cuts down the odds of lethality by 50%. Assuming it's only 25% as lethal for people in your demographic, the combined odds go down to 1%, or 1 in 100.
1 in 100 people dying from corona virus is still very high. But it's statistically unlikely it would happen to you.
Beyond demographics and air quality, there are some other factors to consider. Access to medical care, food / home security, public health policies, presence of law enforcement - these all have an well-understood impact on health care outcomes. In North America, there are 2.6 doctors per 1,000 people, but that number varies by state and city. The overall homeless population is 0.17%, but that also varies by city and state. Norms for public health policies and law enforcement vary wildly right now, there's few places that prohibit spitting on sidewalks anymore despite the fact this was crucial for fighting the Spanish Flu.
If you accept the idea these factors impact overall aggregate coronavirus mortality rates, the number for your personal risk looks quite a bit better. The populations that will be impacted the most are the people who live in places with a low number of doctors, who don't have reliable access to food and a place to stay, and who live in places where people can shit in the street without consequence. Along with demographics and air quality, each of these factors weigh in on assessments of personal risk.
Taking all of this into account, my personal risk of dying from corona virus - during this wave, pandemics always come back around again - is about 1 in 50,000. That number is still very high compared to what I'm accustomed to for public health, but it's not 1%. It's 0.002%, which gives me a little comfort. The risk of contracting the disease is higher, but the probability of dying is what I care about.
I would not want to live in San Francisco right now, where people can shit on the street without consequence and the majority of their physicians - > 30% - are non-practicing researchers and actual clinicians are a minority. I would not want to live in Austin right now, where the homeless population is close to 0.5% and the police literally cannot do anything about them living in heavily trafficked public places. I would not want to live in Fresno, Fairbanks, Long Beach, Pittsburg, or Cleveland right now, where the air quality is low. I expect to hear horror stories from all these places starting in about 2 weeks.
But my armchair assessment of their overall risk doesn't get worse than 1 in 25,000, and the populations that will be most impacted are low-income / homeless populations. There's not enough population density relative to available medical care to kill the people who can afford treatment for the secondary effects of the virus. The Federal government seems prepared to step in and start putting people in clinics if it gets bad, which will lessen the impact for these populations.
The real impact of corona virus will not be medical, it will be economic - and not necessarily negative. There's 330 million people in the US, a 0.5% infection / lethality rate would mean 16.5 million dead. The old rubric about the best time to invest is when there is blood in the streets applies, if 16.5 mil people drop dead that will create a lot of economic activity around making sure this never happens again. Likewise, if the overall economy experiences net negative growth as a result of this virus, that would be on account of supply chain disruptions since most things are manufactured in China. The most likely response is growth in construction and manufacturing sectors domestically to account for critical needs, and probably a lot of incentives from government to make this attractive to businesses.
Shit, if we just moved pharmaceutical production back to the states, that would destroy 25% of China's economy and keep them from flooding our markets with cheap opiates. Might be necessary if there are serious shortages leading to increases in mortality rates.
So here's the real question to ask yourself: would you accept a 0.002% risk of death in exchange for a 1 year economic contraction followed by a rollback of the most extreme globalist economic policies and a decade of US economic growth in the 3% - 4% range, possibly with a couple years reaching 5% - 6%? A likely secondary effect would be a reduction in concentrations of capital in coastal cities in favor of building up production in the heartland. Along with that, increased political capital for people outside dense rural areas.
So I don't see a reason to be pessimistic about conoravirus. Don't mean to sound heartless, but there's significant upside to any outcome. The most probable outcome is that I along with everyone I know will survive and prosper as a result. People living in Iran, South Korea, Italy - it's likely the same picture, their governments will put more of an emphasis on air quality and (in Iran's case) there could be a major upheaval leading to a government we like better.
The only country that should be praying hard for the health of the US population is China. US exports are 48% of their economy and a huge percentage of that is related, in some way, to pharmaceuticals - either making the pills or supplying raw materials used to make them. If the US decides we can't have this critical industry running through a country with such low health care standards, that changes the future. 16.5 million dead might be the catalyst for summoning the political will to make that happen.
Don't buy masks people.