The point is simple. People want democrats to oppose Trump and its consistently one of the top polling issues in every poll and its increasing.Yes, we know more people would vote for the Dems, the issue is getting them there. Is the YouGov poll measuring the amount of voters that planned on not participating initially but have decided to based upon the Kavanaugh nomination?
Why am I bringing this up?
Because it is an actual strategy and not as you falsely frame it, "being the party of lesser evil."
If we're going to have these discussions let's at least be honest about what the people want from Their politicians and the realization, that until Democrats take control of either congress or one chamber and the presidency its unlikely to see any of the other issues they want as well.