OP, from this reception you may feel at least a little misunderstood. This is because you are being deliberately misunderstood because whiteness protects itself. Notice that no one commenting thus far has responded to you in good faith, but have only been dismissive or even reject the premise that this even could be a problem outright.

Whiteness is interested in terminating any curiosity that challenges white supremacy. Exclusive white habitus is the expectation of those who identify with whiteness, and deviation is actively resisted. If white people didn't do this there literally wouldn't be white people and racism would be over. It persists because the people who maintain it are cultured to protect it by any means, especially by rejecting all challenges to it outside of an historical context.

The reason I say all this is because I've attempted the same conversation you are attempting now and this has been what's happened every single time. You can't have a good faith conversation with anyone answering in bad faith. I think this effort is worthwhile and support it, but I advise not to waste too much time with anyone here who is more interesting in refuting you than the problem of racism.