In all honesty, there are some things both in the Bible and in Christianity that can sometimes be difficult to understand. If they were just getting these things wrong it would bone somewhat understandable. Granted, their superiority and delusions of correctness as they get it wrong is tough to take. What is so unbelievable to me is that they constantly find ways to get the simple stuff incorrect.
I taught a Training Union class several years ago that was made of 6 and 7 years old. There were two brothers in the class who were complete hellions. The had the attention span of a flea. Those two, with all their faults, had a better grasp of the Bible and Christianity than the majority of the DUmp.
I don't know how many denominations have something called Training Union. For the record, it is basically Sunday School at night in the Baptist churches around here.