Earlier quoted context omitted.
We don't know if he's gone to the cops, but more often than not the police will not be able to help you in these sorts of situations. The way that Kiwifarms target people is incredibly hard to stop and I don't think they particularly need ammo; the way to not "give them ammo" would be to stop standing up for trans rights, and the fact that he hasn't is commendable.
I replied to another commenter about this, but these sorts of things are basically part and parcel of being a public figure. If you can't handle that, you need to sandbag. There's no other way around it. It is unlikely that Marcan will stop being the center of attention wherever he goes. If he wants to stand up for what he believes to be right, he shouldn't have a problem with the consequences of dealing with people…
This sounds like victim blaming. I suspect very few people who take a stand are truly prepared for years of abuse, even if they think they are. No one has perfect knowledge of the future.