Never.... unless it’s against Hillary, Elizabeth, Manchin, or any other Democrat. Granted there would have to be a lot of nose-holding but if the last election taught conservatives anything it should be that we can’t stay home so as to not vote for an imperfect candidate when the other option is to allow a socialist/communist into the White House !
I said “NEVER”— That means not ever— under any circumstance.
You do what you want to do.