The theological strain
that brought us to where a substantial portion of Christians are rooting on a mass death event.
The criticisms of Kevin Kruse' "One Nation under God" are probably somewhat valid- there was not exactly a conspiracy by corporate bigwigs and "The Deep State" to create a strain of American Christianity that said that, "hey, don't worry about any of that social justice stuff that Jesus talked about, just get busy saving your own soul." It was just sort of a meeting of common interests.
There was a reason why Billy Graham sat at the right hand for 40 years.