Also, I just have to add "gay men can be abusive towards their kids" is definitely a story you *can* write. In a story where a character being gay is an incidental part of their identity and not something given major focus for most of his screen time.
I think it was a sloppy decision on Hussie's part to define Dirk as gay, given prior abuse Bro placed Dave through, but I think at the time it was handled with SOME tact because the idea was that Dirk is nothing like Bro, and the parts where they intersect would wind up being the parts that have nothing to do with the abuse. I don't hold that perspective anymore, because now Dirk exists as a repeat of Bro but worse, echoing some very homophobic themes.