It's the latest bit of genius from the grifter consultant class and the smartest boys on the internet (the real point is, SHUT UP LEFTIES YOUR BULLSHIT ISN'T POPULAR IF WE APPLY THIS VERY SELECTIVELY USING CHERRY PICKED POLLS). I don't think this is how politics work, really, as we have much evidence that public opinion on a lot of issues can shift very fast if one team or another makes it an issue. But, ok, sure, do things that are popular.
Do them!