People can be very nice and polite while saying horrible things. I've heard plenty along the lines of "I'll be your friend, but I'm going to miss you after we die since you're going to burn in hell." Said with the kindest, gentlest tone you've ever heard.
I don't think most things are intrinsically objectively horrible or not. The speaker's context and intentions and the framework you use to interpret end up saying much more than the words themselves.
