My personal hypothesis is that some people are uncomfortable with their choice of values. But rather than deal with their uncomfortable-ness, they try to convert others to their values. If they get others to join, that validates their poor choices. Hence a poor choice becomes a good choice.

Too many Christians really don't understand their Christianity.

My wife and I like watching videos of Andy Stanley. He has a unique perspective on Scriptures. Even a non-Christian like myself can take something useful from Andy's work.