I said on HN including those who are FIRE, where the net worth of the average individual here is much higher than the average and some do, yes, have $50 million or more in assets.

It will never stop at $50M. Once the law is created it is sooo much easier to just lower the threshold. Even if not lowered, in 30 years inflation means it will capture a whole different number of people - maybe you. Maybe it will bankrupt your children.