I shouldn’t have assumed your specific position, but in general that language comes from someone who behaves as I mentioned. We don’t have a choice right now, we don’t have that luxury. I do agree that we should have an option, but in general parties don’t run opposition to the incumbent because they know the incumbent won once, people generally are accepting of the individual as they reflect on their performance (as long as it isn’t abhorrent) and so tossing in a “new” candidate comes with too many risks. Maybe the primary challenger wins within the party, but then the moderates or nevertrumpers can’t stomach the new choice and sit it out or worse go back to Trump (or whoever). That’s pretty much why we generally don’t see primary challenges between terms of a president.