The post said "female dating pool selects in favour of features that are often red flags for toxic masculinity". I took that to be a pretty expansive definition, typical "men that women like over me are toxic" vibe, at least that's how it comes out.

No you are projecting your own worldview over the substance of that comment.

That makes some sense.

Then again, how would a similar "Toxic Blackness" concept fly?

> how would a similar "Toxic Blackness" concept fly

Negative elements of traditional black American culture seem well discussed by the community itself, perhaps to a fault.