"If you want to use the term neurotic - that's quite out of style."
And the DSM-IV turns into the new DSM-V in May iirc. So a bunch of things will change some more.
"Many mental illnesses are treatable"
Speaking of the severe mental illnesses such as Schizophrenia and Borderline Personality Disorder, do they treat them successfully? I retired last year, but from the patients I've worked with and the treatment records I've seen since 1974, treatment is a long way from cure. Sure, some people make dramatic improvements, but many don't, even after years of trying this medication and that medication (and talk therapy if they can afford it.) And even those who are 'cured' often have relapses.