Pretending a spoiler candidate has a chance of winning and getting zero percent of what you want doesn't make you more moral than the people who vote for the furthest left candidate with the ability to win and getting 5% of what you wanted.
We have an obligation and a moral duty to fight fascism at the ballot box. Voting for a fascists' spoiler because the spoiler pretends they are on your side is not strength on your part, it is cowardice.
I don't support capitalism.
I live in a capitalist world and currently only have a choice between capitalism that can be negotiated with, or full blown fascist flavored capitalism.
If you hate liberalism more than you do fascism, you aren't a socialist.