Hm. We have plenty of Washington-to-Texas migration from the suburbs, and there's no serious contention that, say, Auburn and Kent are mismanaged by Democrats. I know multiple families who have left for Texas in the last few years, and it wasn't "this place has crap government," it was "this place is woke." That is, they wanted more "traditional values" in their kids' schools and fewer BLM and pride flags. To me that's a valid and objective reason to leave (and honestly they're welcome to go, I don't want them running for school board even if we are friends) but it doesn't support the contention that government here is incompetent. It just means government here is socially liberal, which it unquestionably is.

There are certainly people leaving for these reasons. Yet polls also show that there are also plenty of left-leaning folk who move.