The banner across the bottom of the screen proclaimed “Mexican Heritage Celebration.” So, a sombrero-wearing white guy pretending at being drunk was the way MSNBC decided to “celebrate” Cinco de Mayo? And no one wants to scream “rraaaaaacism” at that? And can we just dispense that this is a celebration of Mexicn heritage? If you were to ask someone born and raised in Mexico City how he celebrates Cinco de Mayo, he would look at you almost as if you were speaking German. Mexicans do not celebrate any such holiday as Cinco de Mayo. It is an American-created holiday, not...