I don't care if whether the charge is 'accurate', that's fine. I was opining of 'hate crime' conceptually. Writing anything you want is not illegal. To me it's an odd bootstrap to say that something you did which was perfectly legal, basically now becomes part of a crime only retrospectively. While it's true that there a certain aspect of that in conspiracy law, that can get questionable in my view as well.
I guess in general I don't see the utility - or should I say attraction, of finding more ways to stack charges onto crimes that already are going to carry the maximum sanction the law is going to allow - whether that be life/no parole or a death sentence. Maybe it's a form of 'virtuous' virtue signalling, but I don't see that it adds any useful or needed function to the law or public safety. Practically speaking society gains no objective value in deterrence, enforcement or safety by charging a murderer with an additional crime for the reason he murdered.
Now if you are actually going to make the expression of hate illegal, which many countries do (e.g. Germany) then I think that is at least functional, we just don't agree with doing that in the US.