> Why is a white minority a bad thing?

I addressed this question: "Or will that leave them as individualists in a country dominated by inter-group competition, as current polls suggest?"

Of course this is not guaranteed - once Whites are a minority (in the US, not just globally), other races in the US may also turn away from in-group preference, and the culture might turn away from harping on white privilege all the time. It's just that that hasn't happened yet.