Sounds like a great world you're planning.
As an aside, if the welfare state were ended, we'd have plenty of cheap domestic labor pool and wouldn't need to attract illegal immigration either to suck off us, or "take" entry level jobs. The underclasses wouldn't like their lot and would have an incentive to seek out real educational opportunity instead of courses on self esteem. Families might find reasons to stay together for their mutual benefit rather than the current 'do your own thing' tendency for individuals to strike out on their own across the social(ist) safety net that coddles misfits and the lazy.
There are two general models of politics and social life: self control or external control. When life is allowed to provide correcting feedback, the self control model reduces substance abuse a lot faster than the external control methods. Drug abuse isn't about drugs, it's about choices. Our current social institutions all breed dependent personalities where chemical dependency is but one small aspect of the problem. Blaming drugs is a materialistic world view, like blaming poverty on the environment.
Your strawmen don't hold up.