Words are just words. Murder is a crime.

There is such a thing as hate crime, inciting genocide, etc. We just deported a guy back to Rwanda who made speeches inciting genocide before the events that took place there. Good riddance. Let him face the consequences of what he did.
Murdering Bolund is perhaps too much, but the Bolunds of this world are indeed scumbags. If you don't play a Nord character he clearly states that you shouldn't be allowed in Skyrim.
Free speech also means dealing with the consequences. If I say Black people shouldn't be allowed in America, it's perhaps free speech, but I should not be surprised to get
at least a good beating afterwards.