There are huge political headwinds, namely, that the party in charge of all three branches of government considers drug addiction to be a moral failing, not a disease. They are not willing to decriminalize drugs and pay for treatment programs -- they would rather continue the draconian approach of locking up anyone found to be in possession. Look at how much they are already railing against marijuana legalization, safe injection sites, lenient sentencing for non-violent drug offenders, and other similar measures.

I don't know how you can be so rosy about the problem being solved within a decade when the war on drugs has been going on for many decades already.