This isn't debate club, you can figure out sources yourself. The guy spoke groyper lingo, dressed like a groyper, posed for pictures like a groyper. It is not unreasonable to use duck typing.
Does this mean he IS a groyper? Ha, of course not, it is just anecdotal evidence pointing in that direction. But your argument is that because law enforcement says he has a transgender roommate or partner, he can't possibly be a groyper. Uh, sure. Okay.
https://i.4cdn.org/pol/1757787226815828m.jpg