You have only one outcome: the USA will move rightward.

To the extent that voting matters in a fundamentally broken electoral system like ours, voting for the democrats is an affirmation of the choices they have made: affirmation of their choice to arm genocide in Gaza, affirmation of their choice to move right on immigration, affirmation of their choice to abandon death penalty abolition from their platform, etc.

Why would they ever change course as a party if they still get the only thing they want from you either way? Lesser evil voting is a race to the bottom, and the longer people wait to correct the democrats' course, the more painful it will be to endure a republican government in the meantime.

The democrats will never stop this country from its rightward trajectory if they keep moving rightward with it because their base continually validates them.