If conversations like this damaged black people

I do not think so. I think they are just nonsense.

this is not a big deal and we can allow to discuss vague ideas without anyone feeling it's a threat of any kind.

I think most people here, myself included, view this as an offense against logic and not race. It does not harm black people for some anon to say that they are unhappy, no more than for someone to say the dread word 'nigger'. But nonsense is nonsense.

Therefore there is an argument to be made, that leftists and even many black people actually want and need racists, and by having these dismissive attitudes, we're giving in to that by continuing to bottle up ideas we know are there but are unspoken and taboo.

The argument is allowed, but it is also allowed to point out that it is nonsense.