Your response sounds like stuff I’d read on X-Twitter. I’ve experienced most all of these issues she mentions, some from grad school professors. Most people who do them don’t mean harm, but still do harm. Those who care want to do better. Self-improvement ≠ self-loathing.

Bear in mind that you seem far more offended at being called racist than by the acts of racism she itemizes, all of which—again—are real things that happen.