Hi Strelizia,
I like the idea that
"Being non-judgmental towards the self builds one's capacity to be non-judgmental and tolerant towards other people. As people respond positively to this, it fosters even more self-esteem and self confidence."
I think we should take notice of that this does not imply that being less self-confident is being less confident in others. Think about it.
Thanks for the input / bigger picture
Max