…and I don’t see it motivating people to go vote.
But it can do the opposite perhaps — “motivate” people to stay home who would otherwise vote R. Not that, in general, we should be celebrating voter apathy, but I think that some of these endorsements could dishearten folks enough that they end up abstaining.
San Francisco is taking an interesting approach to this problem: https://www.sfgate.com/bayarea/article/sf-police-wear-flashy-costumes-to-catch-drivers-19769362.php