Freedom of speech does not give anyone the right to insult anyone else in public.And, it certainly doesn't give anyone the right to make the kind of broad axe statement you made.

When I was much younger, I made a statement that I have forgotten, but it was a general statement. My wife, at the time, said, "Yes, and all Indians walk single file."
I said "What? What has that to do with anything." She replied, "Well, I saw an Indian once, and he was walking single file."
She couldn't have gotten my attention quicker if she had slapped me.