No. Placing a (seemingly) homogenous ethnostate on a pedestal because it seemingly aligns with your particular brand of right wing politics that blames all of your nation's problems liberal politics and policies regarding immigration is.
@Burnt Fish basically already explained it; people look at the glossy, surface level aspects of Japanese society while ignoring how much actual hell it is to live there, and what it actually takes to maintain that glossy, good looking appearance. The people enjoying themselves the most in Japan are those who can limit their interaction with its negative aspects, such as the toxic work culture, and extreme push to conform. A lot of our favorite vtubers, like Pikamee/Henya are people who either had a hard time fitting in Japanese society or straight up couldn't, for whatever reason (for Henya, it was because, among other things, she is Hafu). Vtubing, for them, was a way out of an otherwise wretched life.
Not in Japan. Culturally, working a real job means working as an office drone, slaving away at a desk. Many so called "NEETS" have jobs, or make money some kind of way, such as by stock trading, or being an entrepreneur, but because they don't have a traditional office job or form of employment, they aren't considered to be really employed by most Japanese people, and this has social ramifications, because being a good, adjusted adult, as far as the Japanese are concerned, means having a "real" job. Good luck getting married, or not having your wife constantly pester you to get a real job, even if you make more than her without stepping one foot in an office. The Japanese have a very narrow view of the world and what a "normal" Japanese person is supposed to do, so being a mal-adjusted NEET has social and personal ramifications for your life.
What you're missing is Japan only looks attractive because people only look at the surface level. They don't actually consider all of what it would actually take to live there, or what living there would actually be like. Yes, there is a good and bad side to everything, but many people, whether its right wingers, or weebs, idolize Japan because they overlook or simply don't know about the bad side.