That not how it works. Addiction is simply not something some people can overcome. It’s a condition that affects everyone differently, and, for some, it doesn’t matter how many resources you throw at it. It’s not a condition one can reason or rationalize one’s way through. For some, recovery itself presents irremediable psychological suffering from which they seek a permanent release.
You seem to be asserting that the state wants addicts to kill themselves, but there’s no evidence for this, as anyone seeking this remedy would have to apply for it and go through multiple steps of evaluation before being permitted. Such a high bar of entry - plus all of the treatment options available - are evidence that it’s the option of last resort for the most extreme cases and not for just anyone.
Just to make extra sure it isn't eugenics, have everyone asking for assisted suicide, provide proof of having reproduced, or get enrolled into forced reproduction first... /s