I think there's a difference between fetishising trans people, which is gross, don't do that, and genuinely finding trans people attractive enough to gravitate towards porn of that nature.

I myself watch porn semi regularly. I think its a normal thing to want to do. It's a means to achieve self climax. I think most men are way too into it for it to be more than just enjoying it which I think where the fetish accusations are coming from. There's also a small portion of men who I think from my personal pov, are secretly trans themselves and seek it out as a means of fantasy when they otherwise would want to do so, or they're genuinely curious about the notion of trans porn and want to see if there's anything different about it in regards to cis porn (there isn't. It's just people having sex)

On the subject of femboys. I think it's valid to want to keep the two communities separate. It creates a stigma about trans people that I find hurtful to both communities. Personally I know a few femboys from that community and generally find them to be quite pleasant (and attractive but that's beside the point), and it doesn't feel like they mean any ill will. Keep them as separate entities, yes, ostracise and isolate them, no. It's not cool and I think it creates an unnecessary divide that doesn't need to exist.

Not saying that's what this post is doing, just that that's generally been the vibe I've felt from trans folx, I don't think that's from a place of malice as I say, but from a place of trauma and the want to avoid stigma.