You either have to recognize that sticks, stones, and words hurt people and police them all or recognize that insulting someone to the point where they put real literal bounties on your head is the cost of sticking your neck out there.
This shitty middle where powerful figures and those “protected but not bound” get to literally fan the flames and then use the police to keep a lid on it created a pressure cooker waiting to explode so here we are.
So sure the dude should be arrested because he caused harm but let’s not pretend that this was unexpected or indicative of anything other than what happens when you deeply insult an entire people. The fact that I think Rushdie is in the right is irrelevant.