Someone’s sexual orientation is not a fetish.
AGP in women.
The reason people don't like "trans MLM art" or call it fetishized is because it looks like this:
example image is from an eye bleeding webcomic made by FTM troon.
Those progressives who say ‘trans-made MLM art’ is fetishisation are just identifying authors of it as what they are: fujoshis. Women who like gay porn have been accused of fetishisation the same as men who like lesbian porn have been. This is one of the many perpetual drama machines of the BL fandom. Fujoshi-to-trans pipeline is likewise working without hitches.
Though I could concede that straight people enjoying gay porn, erotica, or romance is fetishisation, I do not see an issue with them continuing to do so. Presumably, the vast majority of adult people are aware that yaoi manga is not accurate to real-life gay relationships any more than bodice rippers are accurate to real-life straight relationships.
That said, these posts reminded me of an amusing argument I have encountered in the comment section of MRM, one of the largest and most popular sites for pirated gay fiction. On this site, everything goes as long as it features a romantic or sexual relationship between two males, so the content ranges from gay furry porn to films with gay subplots. The audience, likewise, varies in sexuality and sex.
As such, it is not an exception that a bisexual gender-bender manga,
Fucked by My Best Friend, is featured on the site. Furthermore, the site has tags to warn readers that a work features hetero content, should they want to avoid it. Still, this did not stop people in the comments from arguing, and I am rather glad that it did not, as those arguments yielded one of the funniest exchanges I have ever seen on the site. Watch out for the plot twist: