No I don't Phil,
I see precisely the point you are making, and agree that prima facie this may have been the situation. However, to put a little more meat on the bones
unfortunately we had to listen to the rest of his grand-standing, patronising, arrogant, puerile attitude. His bigoted, racist and sexist remarks were directed at anybody and everybody.
I'm fully aware of the use of controversial, self-denigratory humour as a coping mechanism, used it myself over the last few months in fact, and this was not it. This was just a thoroughly unlikable ignorant buffoon who seemed to be aware that his disability was a sort of passport to getting away with disgraceful behaviour in front of the fawning sycophants who were with him at their table.
The word "spacker", for example is, in my view, one of the vilest of epithets, and gives an indication of the baseness of the rest of his wide-ranging discriminatory diatribe.