> as well as their families being bankrupted permanently

No one thinks bills of attainder are a good idea.

This wouldn't be a bill of attainder, it's simply an infinite assessment against the criminal's estate that can't be discharged in bankruptcy. I don't personally think that people should inherit their predecessor's debts, but I have no problem with debts being able to capture the entirety of a person's wealth including homes, pensions, jewelry, trusts, any accounts from which benefit is drawn, etc.