One of the funniest things is when the crazies get outraged over the idea that they could possibly be crazy. It's like they try to do the motte and bailey argument and catch themselves in their own trap.
It starts when something is pointed out to exist. "rabid feminist" as an example in the dictionary. The video Richard Dawkins retweeted. The Sonic helicopter-kin joke. Nobody's even setting out to offend anyone, it's just something that was said as a normal thing. "Rabid" is a modifier, and no reasonable person would assume it's standard of feminism, just as the example of a "rabid dog" wouldn't automatically imply dogs are normally rabid. Dawkins went out of his way to point out that most feminists weren't like the one in the video. Sonic's joke doesn't even make sense other than in the context of tumblr otherkin/multiple system shit, which you'd have to take dead seriously to even be offended in the slightest. In all of these things, it already takes a certain degree of craziness to be offended, let alone do anything about it.
According to feminists, the stereotypical man-hating radicals are extremely rare, if they exist at all. If that's the case, there should be nothing to be offended about. People who are moderate feminist/social justice might just shrug and move along with the rest of their life because who cares? At the most, you might get something like "

, most of us aren't like that". It's only the crazies that have any reason to lose their shit. It's the ones who actually do believe in patriarchal conspiracy theories, hate men, or fit whatever other stereotype, they're the ones that flip the fuck out. By flipping the fuck out, they're openly admitting that they're exactly the rabid feminists those things are describing. And they're trying to deny as hard as possible that those crazy people (them) don't exist, even though they're (themselves) doing it right out there in the open.