Plus no it is not black humour or irony, both of which I “get” and enjoy.
It was a misogynist joke in extremely bad taste, that revealed him as a complete arse, and is quite informative about his character. Since he obviously expected that his audience/followers consisted of similar arses who would find the joke funny, it is also revealing about them.
It is also not about intelligence, but about attitudes to women, and a general sense of decency that should tell you whether a joke is on or not.