You’re touching on an interesting idea: cultural hierarchies.

We can safely say that some cultures are bad. This necessarily implies that some cultures are good. The moment you introduce this sort of hierarchy into the discussion, people are going to start evaluating their life choices with respect to all the “data”. That’s why mass immigration only moves one way: from shit countries to prosperous ones. That’s why people who can afford to do so choose to live in white neighborhoods and send their kids to white schools.