Pretty funny because he actually understands what he's talking about. A lot of his South African specials have aged really poorly in hindsight though, especially when he went through his edgy phase in the early 2010s. Most infamous clip from that was when he made fun of striking miners. Lots of sexist and antisemitic jokes about Jewish women as well, but the latter was limited to text based social media like Twitter and never made an appearance on his comedy specials, as far as I remember.