Not Jewish, but the crowd get the joke and are laughing ++ having a good time. Nerdy internet bloggers aside the crowd would say Trump is a guy with alot of chutz ,but not anti semitic. This is why many prefer him to traditional politicians
Should I take from your book of whining about everything you see on the internet, context be damned? Leaders should not have to cater to each and every SJW, it is what leads to tensions when rights and wrongs are not established. It is what leads to systems being taken advantage of.