That's why they go around harassing people over Facebook posts and shit while ignoring muslim rape gangs.
Now if we look at right-wing activists, the rulers are much more concerned about these guys. They are a threat to the established power structure. They might inspire people to vote the rulers out of office, hold them accountable for their crimes in court, or even take matters into their own hands.
So, it makes sense that the rulers will ignore muslim rape gangs while coming after Tommy Robinson with all the fires of hell.