His brother is gonna marry and be a father, so what? I'm so fed up with the fucking guilt trip and rhetoric of "it is family".
Why are always the people who are trampled the ones who have to suck it up for the sake of "keeping the peace"?
And the mother? Your son is a fucking homophobic, if you really care for your other son, who is gay, you wouldn't intercede for the one that's hurting him.