Have you looked around recently and wondered: Is we getting stupider? You know, brainwise? I’m having this thought more and more, to the point where it’s becoming intrusive. At some point in the recent past, adults concocted the idea that children who identified as animals were using litter boxes to defecate in public schools. Now powerful Republicans are throwing their weight behind banning this practice. Something baleful is happening to our mental faculties. We’re cooked.While others complain, Attorney General Ken Paxton is doing something about our slow national dumbening. On Thursday, Ken announced that he was launching investigations into the companies that make Colgate and Crest for “illegally marketing toothpaste products containing fluoride to kids.” These manufacturers, he says, “continue to flavor their products and…