I didn't called it fake, for all I know that man is suffering from medically induced racism

Medically induced racism is not a thing, and you know that. By implying that this is what Tourette's syndrome (which you know is the real condition) is, you are insulting and demeaning people that have it (including me) by characterizing it thusly.

doesn't change the fact that racism is causing serious harm

Of course racism is causing serious harm. Racism is one of the most serious and abhorrent societal ills, and there's not a single true leftist who would claim otherwise. This is not in dispute, nor is it anywhere close to my argument.

In a similar vein of claims of medically induced pedophilia or induced necrophilia

These are not the subject of discussion either, nor do I know anything about them.

No, when a medical condition leads to a person harming others, the ethical onus falls on them and their caregivers to implement harm reduction strategies that minimize or eliminate the potential to harm others

I agree. Regarding the current controversy, there are many ways in which this could have been addressed or otherwise prevented.

Black people are not in any way, shape or form obligated to sit there quietly and take racist abuse

I also agree, nor would I claim otherwise. As I have already said.

then avoidance strategies become his obligation and he should never be in the line of sight of a black person, EVER!

You clearly do not understand Tourette's syndrome even a little, which brings us back to my original point of contention. It is not a "racism disease." This form of it causes a neurological disconnect affecting the ability to hold back from verbalizing thoughts that the person knows are taboo. These are not the man's "true thoughts" because that's not how the brain works. People with this form of the syndrome may end up saying all sorts of held back verbalizations, which may or may not be racial slurs. This does not make those words okay. Ever. No one here is excusing racism or racial slurs. Black people have the right to be offended by slurs because it does them great harm, and you have every right to be angry at their use here. But you are mischaracterizing why this happened and how this happened, and in your ignorance, you are lashing out in a harmful, ableist fashion. As a leftist on a leftist forum, you should be ashamed that you are letting a legitimate issue anger and incense you towards a reactionary take towards people with a medical condition. No better than a fascist.

We clear now you lost cracker?

You sure you don't want to call me a slur for people with Tourette's instead?