You could also just go with some of the teachings of Jesus. Like love thy neighbour, that was a pretty big one. Pretty sure he said not to be a judgemental belled too, probably paraphrasing a bit with that one.

When I was a kid I was forced into church and Christian school. I was required to read the Bible every day of the week.

This was how I realized it was all bullshit. I believed fully in God until about age 12 or so, when I completed my first pass of the Bible.

It really is the fastest way to make average intelligence or higher Christians shed their faith.

Yeah, I really think promoting Christianity by leadership living Christian values by example would work. Unfortunately for them their conservative brainrot is really far from Christianity...