Why do people always write "Go back to the kitchen" as a joke when it isn't funny.?

People will say to a hispanic person, "Go back to your country" and mean it. Nobody really means it when they say, "Go back to the kitchen." They're just trolling and trying to get a reaction out of you. Any reaction from any woman will do. In real life they are very powerless, tiny d***, immature little boys who don't have the courage to even say "Hello" to a real woman.