Third, there are very few butch or kinky characters in most femslash. Everyone wants soft, pastel, femme lesbians these days, it seems. It's especially difficult to find anything from the perspective of a dom or top.

Yeah, I came here to say basically this. I'm mostly looking for kink fic, and a lot of the tropes I associate with explicit femslash are about things high on my DNW list, like sex that relishes being gentle and tender and egalitarian.

There's also something about cis male bodies feeling more like blank slates than other bodies. In some ways that feels messed up--why should a cis male body be the default? But I think there's something about trauma there too, like a cis male body feels like a less traumatized body and therefore easier to write erotic scenarios onto without unpacking a whole lot of stuff first. If you're going to write a fun erotic story where everyone has a good time, it just feels simpler to make cis male bodies the setting of that story. Which, now that I've articulated that thought fully, I feel more inspired to push back against it, because I want stories where all kinds of characters get to have fun, but I do think that's one of the dynamics at play, at least for me.