This is true. I'd also point out that a lot of non-M-Ls in the real world in many cases aren't as abrasive and sectarian also (as they are minority and have to cast their lot in with M-Ls in many struggles); that isn't to say there aren't any like that...sadly in the UK there is a Trotskyist-Mafia who tend to dominate everything and are very obnoxious (and I am not sure why Trotskyism too off so much in the UK and almost nowhere else but there you go). Of course there isn't as much of the Hoxha vs Mao M-L infighting, anymore, either.
If you mention the fact that M-Ls in real life (as in actually involved with the proper revolutionary struggles) are to the world as anarchists are to Revleft (aka by a fair stretch the biggest) you'd get a lot of flames out on the open boards... in many cases from Left-Comms who only exist on the internet.