Broadly speaking, any argument that starts "black people are..." is a genetic argument. Albeit one that fails to understand genetics.

But no, it's not all about culture. Culture is a factor. I don't deny that. But as I highlight in the article, there are many other non cultural factors (poverty ranking high among them) that affect black people wildly disproportionately.

Saying it's "all culture" is a comforting way to say there's nothing anybody else can do, they just have to figure it out for themselves. Which might hold water if not for the whole Jim Crow, segregation, redlining thing. That's less than sixty years ago, remember.