Philippians 2:3b
in lowliness of mind let each esteem other better than themselves.
Yes. Modern Christianity has a problem. They've been told their entire life that they are important. That they matter. That they must feel good about themselves.....
Well. I'm going to throw out the challenge flag.....
Show me one place in the Scriptures this is taught?
In fact, Philippians 2:3 says the exact opposite.