The conflation of sexuality and pornography is one of the most harmful Puritan ideologies to persist into modern American culture. Speaking as a recovering Catholic who grew up in an extremely sexually repressive household.
As far as gender and sexuality specifically, nearly every aspect of what I did and said was analyzed and judged as "gay" or "not gay" by my guardians, gay also serving as a proxy for non-masculinity... and thus I could not for example have long hair (as apparently only gay men have long hair, and routinely pointing out that Jesus himself had long hair frequently led to punishment or physical abuse). From music taste to choice in friends to choice in language or books, to how I dressed.
In fact, I was told that men are never supposed to cry or show weakness, and my grandfather would quite literally beat the living shit out of me on a very frequent basis from the age of five, savagely beating me with metal objects and whips and belts, anything he could get his hands on, proclaiming that I would continue to get beaten until I stopped crying and took it "like a man". This was a routine part of my cult training as a child, getting beaten until my insides were dried out from crying and I physically could not cry anymore; until my diaphragm was convulsing from the pain. If I'd been found with a book like Kobabe's Gender Queer, I probably would have been put in the hospital.
I wouldn't wish my experience on the most evil of men. I absolutely understand why many who experienced gender violence in their youth simply decide to leave the entire concept of gender behind. Personally however, my path has been to unapologetically be myself and help other young men understand that they can embrace and define masculinity in whichever way they choose. To take back the reigns of masculinity from violent, sexually represeed psychopaths. The number of pissed off parents racked up along the way is just a measure of my success in this endeavor.