except Jill Stein is a batshit crazy person who thinks that vaccines cause autism and that we can just forgive all student debt by "printing more money, we do it all the time."
also if he didn't back HRC, it would have increased the odds that trump would have won.
it was the least bad option given the situation.
this is literally like saying that somebody should have endorsed the candidate that had the least chance of beating Hitler instead of the best chance.