TBH, and I say this as a pretty staunch atheist, Jesus sounds like he had a lot of his shit sorted. Most of what I've read about him is just him being fair and advocating respect of everyone involved.
Paul wrote about people that did not follow Jesus or the bible as following God naturally. (in Romans) One of my neighbors is a Buddist and he's a great to have next door. (cleared the snow from my driveway a few times without even me asking)
I have been personally shamed by the good behavior of other people outside my own "faith" group, including atheists. The Jordan Peterson video linked in a near comment pointed out the need to be challenged and take on responsibility, and have difficulties. I think the only way I was able to change some things about my religious beliefs was to hear the criticisms of my "sect" openly and face them.
My big religious change came when I was publicly confronted and shamed by a member that had left the group I was in. I started to fear disobeying true leadership in Jesus more than a man with authority. (being shamed, and wrong at the same time sucks) Proverbs says the fear of God is the beginning of wisdom.
Well, I no longer follow men blindly, and it's funny what you see in Jesus when you have no religious baggage telling you what he meant...
In fact my main beef with self-help programs is that they tend to regurgitate a lot of basic lessons that already exist in ancient texts in cleaner and more direct forms, such as Matthew chapters 5-7 in the New Testament (aka the sermon on the mount). I certainly found this to be the case with the type of new age precepts that seems to be popular in training classes for corporate employees.
The sad thing is so much good stuff is out there, however people often don't listen, or take it to heart.
The most charitable source for this is probably Lewis's trilemma, which argues Jesus was either correct (he's the son of god), he's evil, or he's deluded.
More polemically, you have anything written by Christopher Hitchens on the subject.
I find it interest that just claiming a title is meaningless if you don't follow the rules associated with that title. But if you follow the rules and don't claim the title, what does that mean?