The George Lopez show is pretty bad, but my girlfriend sorta likes it. It's not any worse than Home Improvement or any other shitty show by white people that lasts forever. According to Ed Asner, Mexicans are taking the heat off the blacks w/r/t white racist aggression, because "There's only so much hate to go around".* But yeah, George Lopez did make those claims. I think his point was that his show had decent ratings and the network kept some really really horrible shows on and dropped his show.
*It should be noted Ed Asner said this on Tavis Smiley and was not let off the hook about it, but he is also very old and out of touch, and he was trying to be a proper liberal, and this kinda thing may have been really progressive to say in 1962 but not so much 47 years later.