I think the answer to your question may be “poor self-differentiation”. Self-differentiation is the maturity to know where I end and another person begins. I think many people, not just Christians, feel threatened and anxious by those who believe differently than them and attempt to force those people to think like them. Sometimes, I think this is more about trying to assuage anxiety through conformity than it is about actually trying to help someone.

Emotionally mature people can hold their convictions calmly and confidently without an anxious need for others to hold those same convictions. It doesn’t mean there is no such thing as truth and error, but maturity recognizes that other people are different and think differently. I have been influenced far more by calm, confident people than by anxious, frightened people.