Futenari soooo popular in hentai

I don't have a problem with it or what idk, but like dang I'm here trying to find reference for NSFW art and to practice but 90% of hentai I find is always women with dicks which is honestly kinda idk weird for me when a lot of people are so transphobic too, SPECIALLY men towards transwomen too so I find it odd there's this many art I see when looking up straight porn. I do it in private browser with VPN so no, it's not my data. If I see this MUCH porn about women with dicks or man with pussies how come there are literally almost to none Trans representation outside of already existing characters. IT'S JUST ALWAYS LIKE MLP TOO OR RANDOM ANIME GIRLS. You don't even get them in yaoi or Yuri (I think for Yuri I don't read much) and I never really seen much trans x someone ever in these types of media outside of Western artists.

Is it just THAT popular in straight cartoon porn? Like im actually genuinely curious cause there's soooo many arts I always see when I search up straight porn.