Desi Arnez was cuban, not mexican...just saying.
True and his role as Ricky Ricardo in "I Love Lucy" was that of a Cuban-heritage bandleader. As I recall from the episode alluded to, he and Lucy got into some kind of spat and when they were patching things up, he apologized and said something like, "...well, that's just how we hot-blooded Latins are". My take was that Arnaz was rightly characterizing Hispanics as hot-tempered and easily aroused to anger. Whether it be Cuba, Mexico or virtually all of South America, history shows that those Hispanics there are engaged in a nearly perpetual state of revolutionary coups.