You write as though these people are only a tiny, insignifcant minority among white people. Sorry....but 74 MILLION of them voted to re-elect Trump. That number constitutes the MAJORITY of white people in this country. I contend that all 74 million of them are white racists and white supremacists. They knew very well who and what Trump was long before they voted. Yet they voted for him anyway — not despite his racism, misogyny, homophobia, anti-intellectualism, etc., but BECAUSE of it.
You are right about this, tho: Only white people can end white supremacy (even tho you didn't say it directly).