Why not use lower crime areas, even if they're conservative/right wing areas, and emulate their policies?

The frequent response is "You can't translate them to X because the situations/demographics etc are incomparable". Tet similar objections are less often if ever raised about emulating the policies of tiny Scandinavian countries that are mostly white.

Because their politics are seen as "correct" by the media and academia, and the policymakers they create and indoctrinate. It's deliberately willfully ignorant of potential solutions because the solutions are provided by people whose policies are seen as "incorrect" (and in liberal/progressive circles, this often is reduced to "evil").