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.
Scale modelling for sure. Most model kits are military vehicles so the primary audience is going to mainly fall under: people who are into military history, people who were in the military (or had family members in the military), and/or people who fetishize the military. Since this hobby also requires some money and time investment, it naturally attracts the more privileged people as well.
WW2 models also attracts a lot of Wehraboos. I can understand the Tiger and Panzers being popular since they are fairly iconic, but there's so many niche variants, paper designs or prototype vehicles that you can tell were solely made for appealing to the German tank nerds.
Real tank nerds build six T-34-85s for every Panther model that get's produced.