I haven’t voted in a presidential election before (in my early 20s), however if i had i would wish that i didn’t. I target biden becuase he is currently arming and aiding fascists.
As for fixing the israel issue; i’m hoping, praying that democrats see the threat of being unelectable due to their complicity as more important than aiding a genocide. If biden ended his support of israel i’d actually vote for him. I dont have much else i like about him, many things i really dislike about him even, but thats normal for US presidential candidates. Its the genocide that pushed me over the edge, i cant budge on that.
If you meant fixing US politics then I would say that is not possible without radical change of our current political system.