Aside from videogames, choose your own adventure (cyoa like on r/makeyourchoice) prompts are also pretty rife with shitty things. Aside from the excessive sexualization of women, there are also several instances where authors enforce a gender binary and heteronormative romance.
In a subculture based on customization and choice.
History. I remember being so excited when I found r/historymemes but then it was just 90% "communism is when no food." Basically every time I check out the community of a thing I like there is at least a couple weirdo reactionaries who have to bring up hating trans folk or ranting about SJW cancel culture into literally every discussion. I think the only largely good communities I've found are DnD/Pathfinder, and Harvest Moon/Stardew Valley/Etc. which are thankfully both very queer-friendly.
This is tech/software forums.
Everytime lemmy or hexbears slur filter comes up:
:le-pol-face: “Ah yes, the sremovedhrope problem.”
Because the word sremovedhrope comes up all the time in conversation.
Academic history is a lot different, alas it's kinda boring