Voting is not a stamp of approval I’ve established that pretty strongly with evidence and theory. It can never be a stamp approval as long as the current system for voting is in place.
You do have a moral fallacy you say that you’re complicit if you vote for someone who is immoral. To extend this logic you’re also complicit in every other evil that could have been prevented. I don’t think we need a replay of 2016 to establish that a republican victory will do more harm both short and long-term.
I’m not saying you shouldn’t pressure him I’m saying you can’t. Your methods will not work, never will. Because the voting system we have in place does not allow lack of votes to pressure, only votes pressure. It’s why millennials get so little of what they want because they don’t vote like older generations do.
So why is pressuring Congress the one piece of action you actually have left so out of the question?