I'm pretty much 100% certain that depression doesn't exist. It's just a bunch of bored 20 year olds trying to be trendy.
You never had depression?
No, I wasn't depressed when I was a teenager
It's fine if you didn't have it. But never trivialize the suffering of others.
That's crazy. Why should accept people who have mental disorders?
Because they are still a human being who  deserves care like anyone else. If you had a mental disorder you would wish people cared about you.