I didn’t make the comment you are referring to. I don’t think I would have either. But I think it is worth discussing. Part of the issue with homophobia is 100% that homosexuality is repressed in many western cultures.

I say this to you as someone trained as an anthropologist, who has been taught about many other cultures, and experienced a few, who don’t repress or shame homosexuality or bisexuality.

Many Asian cultures for instance are sort of “don’t ask don’t tell” among supposedly heterosexual married men or women, who want to engage in homosexual sex on the weekends or whenever. In many cultures having sex with someone who is the same sex as you, doesn’t necessarily put you into a different sexual category.

In western culture, and especially for men, having sex with another man is very taboo, unless you are ready to qualify yourself as gay. For women it’s more quite the same. Women in western culture can “experiment” with other women, maybe kissing, maybe more, it doesn’t make them a lesbian or even bisexual necessarily. But for men in western culture it’s different. It’s very common for men who are just sort of maybe bi-curious, to repress those feelings, and over-compensate to the point that they become the homophobic and possibly even violent bigot, who is trying ti prove ti they world that they aren’t gay.

You used some hyperbole in your comment, that the redditor you are responding to claimed “all homophobia comes from gay people”, that’s obviously not the extent of it.

I would personally reason that much of homophobia in western culture comes from a repression of sexuality in general. Especially in the lack of experimentation and same sex freedom amongst men.

You can call it toxic macho bro culture. Although women, girlfriends, mothers grandmothers, etc are to blame for it as well. But so are fathers, brothers, grandfathers, etc. It’s basically a culture-wide stigma against men engaging in kissing, even hugging, and obviously all other sexual contact. In most western cultures, men say hello to other men by shaking their hand, but you say hello to a woman with a hug. The stigma is very deep, on all levels of society.