Certain christian groups push that narrative to make more of an in group and and out group. I attend a few different denominations of churches. You get a way to really see how different people view the world and their religion that way.

Some groups as a core belief that they must struggle to bring the word of God to everyone. Struggle is the operative word. If they don’t feel like they are behind ‘enemy lines’ they aren’t completing the holy mission. The best way to get that feeling is puff up any small difference into an uncross-able gulf.

There is so much rhetoric made on their communication channels to reinforce that view. They truly believe it because ‘it’s all around them’ It’s way cushier to run a mission trip from the Louisiana to California than it is to a truly under-served part of the world.