As I said before, the only thing electorally each of us truly controls is our own vote.
In the end, if the choice is between those two, you WILL be picking between those two no matter what you do. All other options are but illusions in this de facto 2-party system of ours.
I will not vote for a candidate who isn’t strong on the Constitution. I don’t care if there are two parties or 50. I honestly don’t care how anyone else votes, either. We either push someone who is strong on the Constitution, or we lose the very few remaining Constitutional liberties that we have left.