I was trying to think of simple legal changes that would make America better for everyone.

The first one that comes to mind is: "Set corporate fines for ANYTHING to be minimum 150% of the money they profited from their lawbreaking, as assessed independently by the government".

Get rid of the concept as "fines as a cost of doing business" and turn them into actual deterrents.

This comes from Yet Another "Oopsie' from local chemical plants.

@EmilyGB2023
That's a good thought.
I'll add that every manufacturer should be responsible for the post consumer packaging they use.
If the focus of packaging products was to reduce waste and the use of plastics, instead of protecting their profits, we could reduce pollution significantly.