Not sure how this is really relevant. We know about Jaiden's feelings and opinions in regards to both her own sexuality and views on romance in general. We know that she is aware of R34 images of her avatar.
Getting off on hentai of Jaiden is really no different than people getting their rocks off of celebrities and porno mags back in the day before the internet. So long as we remain respectful of Jaiden herself and don't conflate the fantasies with her as a person, then it shouldn't be a problem. It becomes so when someone harasses her about it, which is of course crossing a line.
The entire point of porn is to be an outlet for sexual pleasure and lust. That's it.