SCOTUS are communist’s who don’t care about the constitution. Just because they give a ruling does not make them right. Look how many times they change there own rulings whenever it suits them.
So you think it is OK to financially destroy you based on a law that did not exist when you did something. Destroy your reputation as well. That it is OK as long as you can’t go to jail for it. Use a little common sense. The founders didn’t put in any such exceptions.... A crooked court did.
The SCOTUS decision limiting the ex post facto clause to criminal cases was decided unanimously in 1798, pretty darn close to the founding. No one at the time protested the decision as crooked or incorrect.