Not funny, but why is it offensive?
Having said his brother was messed up, and comparing him to a monkey....
and then saying that they called that messed up, monkey-like brother “Rodriguez”, a Mexican name, because Kelly thinks of mexicans when he thinks of people who are messed up.
A famous sportscaster was long ago fired for comparing a black running back to a monkey. If Kelly was a republican, saying that Mexicans are like monkeys would end his career.