I, for one, am glad they are showing the dad's history and thought process rather than going cliché "traditional father doesn't care or want for anything else than traditional norms." Makes him more of an actual character as it could have been so easy to just write him as "Ain't no son of mine a fag."
Doesn't justify his actions but at least we know where he's coming from, especially considering his own upbringing.
Also no physical domestic abuse so that's a point towards an actual conversation. I don't expect or need him to understand (completely) but if he gets to "if this makes you happy, I'll live with it" level, that's more than most other father figures in these kind of situations tend to have going for them.