> refuse to vote for a party that was complicit with the threats against me and my friends. The other party is pretty ass too, despite being closer to what I want politically

Sure. There are a lot of other people like you. Political operatives work hard to find folks like you, because groups who won’t vote are groups you can transfer resources from. (Same, oddly enough, for folks who will vote for you regardless of what you do. You can take advantage of that loyalty to buy votes on the margin.)

It’s dumb. And it directly undermines the causes you and others like and around you support, because again, your devoted non-participation creates political capital on the other side of any issue you would have voted on. But it’s common and a real part of any electoral—possibly political—system, and no elected who wins and keeps office can afford to ignore the free resources predictable non-voters offer up.

I don't really care if it hurts the causes I want, I am not voting for the people who send my friends death threats. Either way, neither party really supports what I want so voting for one would hurt the causes I want anyway.

> I am not voting for the people who send my friends death threats

Uh, then don't. I guarantee you have more people and issues on your ballots than the person who allegedly sent your friends death threats.

> neither party really supports what I want so voting for one would hurt the causes I want anyway

If neither party has any position you give any shits about, yes, I sort of agree you shouldn't be voting... (And I guess I'll concede you aren't voting against your interests and causes if you have no interests or causes.)

If I don't vote for the people who are a part of the party who sent my friends threats and didn't vote for the people who actively hurt the policy I want, I would either be voting for esoteric third party candidates (might as well not vote to save effort), or I would be out of people to vote for.

> If I don't vote for the people who are a part of the party who sent my friends threats and didn't vote for the people who actively hurt the policy I want, I would either be voting for esoteric third party candidates (might as well not vote to save effort), or I would be out of people to vote for

Well no, you'd be forced to participate in primaries or civically engage. You'd have to identify opportunities for compromise. You'd have to disaggregate your false monolith of a national political party. That takes effort.

Also, showing up to vote for an esoteric third party puts you on the board. Someone who shows up is provably not too lazy to vote, which is, honestly, most people who come up with convoluted reasons for avoiding the polls. Take a lazy person's stuff and they won't hurt you. Take a person who's showing up to the poll's stuff, and they might vote for the other guy--or worse, join a primary challenge.

Folks rejecting politics implicitly endorsing the status quo (whether they understand that they are or not is irrelevant to the measurable effect of their choices). They also put up a flag around themselves and their community that effectively marks it for cutting resources to benefit people and communities who reward their electeds.