First, his primary job as a sock is to troll others to generate responses. My advice is to not rise to the bait but figure out how to put a hole in his boat.
That said, Gender is primarily a social construct. Let's be honest, without a social construct, young males from puberty until their elder years would
literally fuck anything. History proves this to be true.
That said, does two male roommates giving each other handies while watching Lesbian porn make them gay? No. There are sexual acts and sexual preferences. Human males, again, will often fuck anything. Social constructs put limits on them. Jus' sayin'.
https://www.psychologytoday.com/us/basics/gender
All humans are born with biological characteristics of sex, either male, female, or intersex. Gender, however, is a social construct and generally based on the norms, behaviors, and societal roles expected of individuals based primarily on their sex. Gender identity describes a person’s self-perceived gender, which could be male, female, or otherwise.
Have fun with trolls.