Mental health issues are not cut-and-dried.
Agreed. But racism is. When an animal is rabid, you put it down. It's not the animal's fault, but it's dangerous. With racism, you don't make excuses for the perpetrator -- you call it what it is and you don't encourage or make up reasons why it's ok -- it bloody well isn't ok, and it makes absolutely no difference as to why it's being put forth. Racism deserves zero social support, direct or indirect. Zero.
When mental illness foments, supports or creates hate and divisiveness, the situation has escalated beyond any reasonable level of tolerance. "Living with it" transforms abruptly from a kindness to abject stupidity. Even the very weakest grasp of history tells us that racism never, ever leads anywhere worthy, and that's the upside. The downside is absolutely horrific.
Try living with a serious mental illness for a while and then get back to us, mkay
Don't make baseless assumptions, m'kay? You'll spend less time savoring the taste of your own shoes, deluded into thinking that is the flavor of rhetorical success.