I think in this case it's sort of just poorly worded. Like, I think it's meant that they were bullies because they were big, but someone bigger could bully them.
Which, in it's way, is
insulting because it kind of implies that bullying against homosexuals sort of isn't. Hoops came out in middle school first, so it's almost inevitable he would be picked on in some way - especially since he was into sports, so he'd be sharing close quarters with a lot of other guys in their teenaged years. Dumbbell, meanwhile, would catch some flak for even hanging out with him at the time, not to mention what happens when he actually does come out.
I actually get a lot of questions that hinge on the idea of them still being assholes, which I enjoy because it allows me to subvert that assumption. This one simply has the benefit of allowing me to show some degree of abuse homosexuals can go through - and a more holistic issue at that. Anyone
can be bullied in any way, at any time, and it isn't contingent on whether or not they themselves are or were bullied. Heck, I was bullied as a kid and I did some bullying back in my life - perhaps even to the very person that bullied me as he was doing it.
The question wasn't intended
to be callous, again like the previous one, but it was thoughtless given the circumstance.