It's a fallacy to talk about religious "perfection" here. Obviously few people agree 100 percent on religion. But the doctrines described herein are not like the Catholics and Presbyterians debating transubstantiation. It's more like an alien species landing from planet Kolob with a strange language and bizarre and unacceptable cultural behaviors.
in the evolution of Christianity, only the fittest will survive
Are you appalled by the Southern Baptist Faith and Message (2000):
http://media.houstonsfirst.org.s3.amazonaws.com/uploaded/o/0e1870269_ourbeliefs.pdf