@Midoriha Ignorance isn't the same as homophobia. His comment is essentially his feelings and experiences as a straight man, so you can't really fault him for saying something like "Well, I'm not into guys so seeing them kiss is weird." He also hasn't actually seen the drama, so he has zero ideas on how he'd actually feel/react seeing two guys kiss, which is why mom's response of "Why not just see it then?" was enough.
Now had he said something along the lines of "Wow, can you believe they're letting fags kiss on TV nowadays? That's disgusting! How dare they do something like this, what if a kid saw that and became a fag too?! Neither of you boys better be a fucking faggot or I'll kill you!" ... Then I can see other people being less forgiving.