>is it just the guy who's dumb, ugly, always ill with something and destined for a short life who's hammered if he or she happens to make some real cash

I'm sorry, I don't think I understand the exact point you're making.

I follow the premise of your argument. You're saying genes are a birth advantage, just like money is. I absolutely agree with that. But I don't understand how this ends in "just the guy who's dumb, ugly, always ill" being "hammered if he or she happens to make some real cash."

FWIW, in many Western countries, healthy people are already functionally "taxed" (although it's often not technically a tax) more than unhealthy people because both pay similar amounts into healthcare but derive different benefits from it.

I also think that's good, just like taxing inheritance is.

Those unearned traits might make you more money, and you might also bequeath these traits to your kids. It would compound the injustice if you could furthermore bequeath all the money to your kids, while it would ameliorate the injustice if the inheritance were largely taxed away.