I partially agree. Depression has nothing to do with logic and Depression is kind a Symptom of messed up brain or hormones i think. People dont decide to be depressed.

And i would like to throw in the theory that high and low selfesteem does not really exist, but rather stabile and fragile ego. People with high or low self esteem tend to struggle with critic and be defensive or tend to feel bad about themselves. But that is gross generalisation and fragile/stable ego makes a lot more sense to me