https://www.msnbc.com/rachel-maddow-show/maddowblog/trump-goes-new-extremes-comment-poisoning-us-blood-rcna118976
There’s nothing new about Donald Trump attacking those seeking a better life in the United States. But “poisoning the blood of our country” is new.
It also plays into the rhetoric that Christians are being persecuted, like the early church. It makes them feels more connected to their scriptures and further deepens that emotional connection to their religion. Church is a massive endorphin/serotonin trip. Feeling more connected to the early church makes them feel more like Paul is writing directly to them, which pushes more endorphins. The music style that's become popular is pretty trance-like, which releases more endorphins and then when their high on the explosion of endorphins, the pastor comes in and weaponizes that feeling claiming that the gays or trans people or Muslims or the left or whoever they want to villanize are going to take that feeling away and persecute them just as the Romans did to the early church.