It's not my job to prove that the law has a negative impact. It's on the legislators to show that it has a positive impact before passing it.
That didn't happen. Instead, Proposition 65 was a case of "Oh, no! Something must be done. This is something. Therefore, it must be done."
I'm not saying it is your job to do anything, I'm saying your argument against it is fallacious.
Legislators didn’t pass it. It was directly voted on by voters.