Do you truly think it's acceptable to just say what you please, whatever it is? There is a vast difference between something like 'I'm concerned about the impact of immigration in my local area' vs something like 'n-word scum, I'd burn all their houses down'.
Freedom of speech HAS to have a limit, somewhere. Otherwise it would be acceptable for people to hold and share views like, for example, those Hitler held, with no consequences, under the guise of it being an opinion. Some things imo need a zero tolerance policy.
Obviously you should not be murdered for your views. You are entitled to express what you please, but if you're going to spout horrible views, expect legal or social consequences. If you are going to use words that sound violent, perhaps consider you may also end up on the recieving end of it.