Your statement "that's your fucking problem to deal with, liberal" tells me you wouldn't vote for Biden even if he gave you another stimulus check. You sound like a staunch Republican to me, you just drew the line at Trump. Wouldn't surprise me one bit if you voted Trump once you're in the ballot box.
Do your thing dude.
The thinking is that 3rd party votes will lessen the amount of votes Biden gets, thus allowing Trump to win.
You aren't actually adding a vote to Trump's tally, you are subtracting one from Biden.
Most of the Independents I know skew towards the Republican side anyway, so I'm just a little inclined to think a 3rd party vote will actually subtract from Trump's tally, but I'm just a little old blue lady down in Louisiana, so what do I know?