Obviously I understand my childhood community in far more detail and depth than your rather transparent question. My conclusions of their racism are based on far more than I mention, but yes, it has since then proven to be a very clear smoke signal. Other places I've seen the same thing but not as severely are snow sports and auto racing.

I have no desire to retread the 101 of how "white" cannot be treated as logically equivalent to other racial labels. Go do some reading on the subject. A good place to start is trying to enumerate exactly what heritages count as white, and how that has changed over time.