I almost stopped watching for the same reason but let it play for another episode because it came on the recommendation of a good friend. there's a particular conversation in 3rd episode that changed my mind because it recontextualized what was happening from the sexualization of girls to the same girls dealing with being sexualized while grappling with their own sexuality. you can decide for yourself whether the way the show handles it works for you but, personally, the show went a long way towards getting me to stop caring about how others saw me as a then baby trans. there's also a noticeable change in how the camera (and the bystanders) treats the characters after that conversation -- it stops leering at them and starts to behave more the way you'd expect from like a Shonen battle anime. desexualized nudity is rather the point of the show, what with demon clothing trying to eat everyone -- no one gets to keep their clothes past a certain point. it doesn't have to work for everyone, it just did for me.

as for the leftism, it's not just because they're fighting fascists -- the show is critical of capitalism, shows it's decay into fascism, and spends a lot of time on the internecine squabbles between different kinds of leftists, before the eventual revolution.