The Republican Southern strategy was a 1960s–1970s plan to attract white Southern voters by subtly appealing to racial resentment and opposition to civil rights, using coded phrases like "law and order" and "states' rights." (Britannica)
The Republicans are very bad for America, but they are also very good at doing everything they can to divide, scapegoat, create enemies, and hate. Knowing that, by most estimates, the Republicans cannot win elections if it is a fair and equal playing field, the Grand Old Party has discovered the very useful and deceptive term of THE OTHER.
The devious Republicans have fine-tuned the art of looking over there to keep their horde of racists, bigots, antisemites, homophobes, and misogynists too occupied hating rather than have any of these cultists actually examine how they have been fucked over by the Republican Party.
Trump administration wants Supreme Court permission to ban transgender military members. (MS NOW). Currently, it is hating the trans community, and while you hate them, don’t forget to be on the lookout for the immigrant, especially if they have brown skin. Never forget that women are a little too bossy and need to be reminded to be subservient. Keep in mind that black folk might become too uppity, that Muslims want to burn down the Christian churches, and, for shits and giggles, remember that Canadians really do hate America.
The one lesson the Republicans seem to rely on is that hate and loathing can win votes. Fear will bring out the masses, and the masses, according to Republicans, are too petty, too stupid, too ignorant to ever realize that they are the ones being screwed!