It has always amused me that some of these guys think they can 'stay in' and help others. While I admire their noble desire to help others, they clearly aren't reading the very Bible they claim to want to uphold. If they did, they would leave:
"Be ye not unequally yoked together with unbelievers, for what fellowship hath righteousness with unrighteousness? And what communion hath light with darkness?" -- 2 Corinthians 6:14
It isn't 'saveable'.....so if you're a person, with a good heart, trying to remain loyal to God....... you need to consider his view.
And his view is that its a cult.........