That is certainly your interpretation of things. And you very well may honestly feel that way.
But here's a little anecdote for you. UB and I disagree on a fair amount of things, both politically and otherwise. In 2011 or so we used to troll each other from time to time, but eventually we were cool with each other. My observations thus far have been that UB shits on people who have said racist things or stupid shit that could be interpreted as racism or bigotry. And just as the person who says racist shit has every right to say what they want, UB has the same right to "fuck with you".
There's always the Ignore button.
And of course if you don't want him shitting on you, stop saying stupid shit. (Not directed at you specifically
@bravedave, I've never read your posts)
If UB were wildly shitting on everyone, wouldn't you think he would be alienated from the entire site? He doesn't and he isn't.