Is "avoidant personality disorder" another marketing scam in the social sciences?

It looks like there's a bunch of social workers or psychologists that are diagnosing people with this disorder. There's a bunch of girls on youtube that are coming out saying that they have this disorder. My suspicion is that this is just a mix of personality and emotional neglect/(abuse) from parents during childhood.

What do you think about the book “Adult Children of Emotionally Immature Parents”, and do you believe that there is such a thing as emotional immaturity?

What do you think about the book “Adult Children of Emotionally Immature Parents”, and do you believe that there is such a thing as emotional immaturity?

What is the process to begin consulting to a clinical psychologist or psychotherapist like you back in the day? Do you need to see a doctor first? Does insurance pay?

What is the process to begin consulting to a clinical psychologist or psychotherapist like you back in the day? Do you need to see a doctor first? Does insurance pay?

I can't get a word in with more extraverted (assertive) people. They take all the space and are not looking for a response. What can I do about that?

Is there a good counter argument to "there is no such thing as truth"?

What is truth? And can it be proven to be objective and undeniable?