Nowadays words like "Liberal" and "Muslim" are used by right-wing extremists in the same way as the word "Jew" was used by the right-wing extremists of Nazi Germany.

The Wall is nothing more than a talking point Trump uses to trigger his racist and xenophobic base. MAGA minions have been brainwashed by Nazi propaganda techniques to see foreigners as evil monsters who want to exterminate white America, and Trump as their protector who was sent by God.

Many fundamentalist Christian Evangelicals are racist because religion and racism are two sides of the same coin. Both are nothing more than primitive tribalism: Us vs Them thinking. That's why religious nuts and racists can so easily be manipulated into hating someone who is different from them.