Well, I know it's not the most common thing... but neither is it the case to find one of those people among the public who not only read the synopsis and download the "gay game" but complete it and later wait to see if it will be continued.
A while ago I saw a video on YouTube of a streamer who interviewed an ex-neo-Nazi who said he was very into it... until he met someone who instead of attacking him was kind of open-minded, as if he wanted to understand the whys of the guy. And over time it seems that this person was making him question certain things as indoctrinated or fanatic about what he was into and he ended up leaving those neo-Nazi groups he was in.
So well, I thought it could be one of those cases. And who knows, maybe he still is but ended up writing those things because he was defensive. There are quite a few homophobes who are actually repressed homosexuals, and that homophobia is actually jealousy, fear and resentment. There are even "anti-furries" who later end up "becoming" furries; that initial interest instead of indifference can be something.
It's better not to be polarized, to be open to debate/argue. Hopefully at least all that is a seed for him to reflect.