There's nothing to "dig in" about.
He introduced the word racist into our exchange.
There are black people who don't care much about their own heritage/ancestry
Do I think they're racist ?

BUt Mikey went to the lengths of making an entire thread expressing his annoyance about how people talk too much about ancestry/heritage/race, etc.
He literally made the thread less than 24 hours before Formation premiered.

A video and song that was fully and unapologetically focused on everything he said he was annoyed with hearing about.

I just questioned the consistency/genuineness of stance. Not whether he was a racist.

I don't think Mikey is racist.