it is extremely difficult to avoid stores/businesses owned by religious groups.
I recently avoided purchasing an item from Yakima due to the coming across the following [0]. In reality businesses like Marriott Hotels and Chic Filet irritate me and I avoid when I can (business uses Marriot for work)
if there was a list of athiest or agnostic owned businesses I would likely spend more money at these locations than any others.
[0] https://en.wikipedia.org/wiki/Arcapita#Compliance_with_Shari...