Dude, I dated a fundamentalist once. This enraged her parents, who immediately forced her to quit her current job where we met, then they shipped her off to a church camp - by which point all forms of contact were supposed to already be cut off from me - then she was herded into joining a Bible college halfway across the country, where she also ended up literally working at a Chick-Fil-A to pay for that schooling before meeting and then soon marrying a guy who was a part of their system.

Yes, technically these businesses are open to the public. But that doesn’t stop them from being led by christian nationalists, having biases in favor of others like themselves, creating environments more amenable to their own kind, and playing side-rolls in supporting the relative isolation of these networks.

The thing you’re underestimating is how widespread and pervasive these groups are. Why do you think law enforcement organizations so readily support Trump and his policies? It’s because these groups outright worship power and authority, and part of their grooming is to train every generation to actively seek out every position of power they can - including military and police.