It seems as if you have bought into the mantra of identity politics, making broad generalizations based on race rather than on individual trangressions or accomplishments. You were not fired by white supremacists, but rather, by those who are part of a cancel culture which is unforgiving. Rather than seeing you as an individual with faults, failings, virtues and strengths, you were dismissed because those surrounding you are also not looking at people as individuals. This is part of the culture and religion you have bought into, and it does come back to bite if you do not tow the company line.