Because you're not paying attention to what I said, and substituting understanding with a ridiculous strawman where everyone who doesn't agree with you is BlueMAGA.

Primaries are the appropriate time to vote your conscience. The general election is the time to try to secure the best outcome possible between the choices.

In regards to Palestine, there was not a choice to withdraw support for Israel. Vote Republican? Palestine is royally fucked. Vote Democrat? Palestine is also fucked, though potentially to a slightly lesser degree. Vote third party or not at all? A Democrat or Republican wins, Palestine is still fucked. There's very little difference in the outcomes, so it's not a useful criteria for making the choice. Sure, you might feel self-righteous for abstaining, but that in no way unfucks Palestine even a little bit.

Since there's no difference in outcomes for Palestine, the decision should be made based on other criteria: immigration, civil rights, etc. Spending your time online telling voters not to vote for the lesser evil because they're still evil does not prevent evil from filling the office

Imagine it this way: what if there were a major candidate who was resolute about aiding Palestine, withdrawing support for Israel, and even taking action against them? And what if vegans flooded online spaces to try to convince voters not to vote for them because they aren't committed to ending meat consumption? Assume that neither candidate is committed to ending meat consumption.

How would you feel about those people taking actions that jeopardize Palestine because the pro-Palestine candidate isn't vegan? Even if you're vegan yourself and agree that meat consumption should end, not voting for the pro-Palestine candidate isn't going to accomplish that. No option is going to accomplish that. They're just sacrificing Palestine to make a stand on an issue that will turn out the same either way.