Quick google search brings up a subset of Spanish Jewish population. Not sure if this was a typo or if it's a very specific regional slur?
Marco Mouly is a poker player, huslter, fraudster, compulsive liar and many other thing. Even in a film or a standup he would be too much to be true.
I know things are different in France, but in the States the rule is generally that "only the fat kid gets to make fat jokes", and making comments like "caricatures of sephard" is in extremely poor taste.
France is also a tragicomically racist country, so "where I'm from" doesn't exactly cut the mustard for enlightened commentary.
Just because we control the media doesn't mean that you can make jokes about it (and this is an example of the Jew telling Jew jokes).