I’ve been seeing a lot of anti-voting sentiment going around. Can’t believe I have to say this, but you need to vote. Not only is there more to the election than just the president. (State policy, Senate, house), but not voting is not an act of protest. C’mon guys
It’s not a good tool if one party is likely, but not guaranteed, to win without your vote, but is much worse than the other. You should only spoil your ballot if your constituency is has a large enough majority that your vote won’t matter at all, or none of the parties are less bad than the others.
If you’re voting on the single issue of Palestine in the US presidential elections (not the primaries), then no state has a large enough majority to justify as spoiled ballots, and one party wants to support a genocide while the other wants to discourage it (even if they’re doing a crap job of it), so there is a least bad option to vote for.
The first instance is realistically the only case in which it would really matter that you spoiled your ballot, though. In the second example of when you might spoil your vote, it wouldn’t really matter at all, precisely because they have a large enough majority.