1. Suicide rate doesn’t “measure death from mental illness.”
2. The suicide rate isn’t “the death rate from mental illness.” (See #1)
3. What do you even mean by “we are doing a bad job”? Who is “we” there? Also, this “conclusion” you’re drawing is supported only by nonsense predicates (see #1 & #2).
4. The “mental health profession” isn’t responsible for moderating the suicide rate. Also literally every mention you make of “mental health profession” is fallacious because the suicide rate is not an actual metric for evaluating the efficacy of the “mental health profession”, so even addressing anything you’re saying about “measuring how good of a job the mental health profession is doing” would be legitimizing a nonsensical claim. This one covers how pretty much everything else you wrote here is wrong.