I get the entertainment aspect of it. And I would be a hypocrite if I said I haven't enjoyed some of the content produced. Or laughed at a "black movie" for example.
But some things makes you wonder over the years. Like taking guys like Psycosis, Juventud and Super Crazy, three of the best luchadores of their time. And just putting them on lawnmowers.
I guess what I am trying to say is as long as it isn't the entire character I'm fine with it. Yokozuna is a good example of it done right. Big bad foreigner, but he was also a big bad man in general. He wasn't evil because he was foreign, he was evil because he was a big bully. But when you get something like Cesaro yodeling, without any motivation for it outside of being Swiss. Then it rubs me the wrong way.