I've seen him talk about his tendency toward depression and I've seen him talk about his recent addiction, illness, and ongoing recuperation.

I've watched a lot of his videos and read his books. I never saw him mock mental disease or say that addiction was for the weak (unless to the extent that all humanity is weak). That just doesn't sound like the type of thing Peterson would say. I have a hard time believing you.

Would love if you could actually link to evidence of him mocking and saying what you said, and not just linking to an unrelated The Sun article.