Not sure if you're up on the literature but the chemical imbalance theory of depression has been disproven (or at least no evidence for it).

No one is stigmatizing anything. Just that if you consume doom porn it's likely to affect your attitudes towards life. I think it's a lot healthier to believe you can change your circumstances than to believe you are doomed because you believe you have the wrong brain

https://www.nature.com/articles/s41380-022-01661-0

https://www.quantamagazine.org/the-cause-of-depression-is-pr...

https://www.ucl.ac.uk/news/2022/jul/analysis-depression-prob...