This is just not true voting third party or not voting means you are voting third party or not voting. This reasoning is senseless so if I vote Lu Cruz I'm helping Trump, Harris, Stein, etc.. all win no I'm not. No reason to vote for a candidate who will run fascistic policies which Trump and Harris both will. Electoralism is a dead end in broken system built to maintain the status quo.
you're only kidding yourself. the election doesn't give you points for process. it only gives you outcomes. and as things are right now in the US, there are two. you either contribute to outcome 1 or outcome 2. there is no other kind of action.