God forbid that drug addicts get treatment rather than punishment...

But they aren't getting treatment, they are dying in the streets.

Portugal's drug decriminalization policy, implemented in 2001, has led to significant public health and societal improvements. The reform decriminalized the personal possession of all drugs, treating it as an administrative offense rather than a criminal one, which means it no longer results in imprisonment or a criminal record.

The problem with using "Portugal's drug decriminalization policy" as an example is that the US Lumpers won't commit to the whole program, just picking and choosing the parts that "feel good".

While it is a "decriminalization" it is illegal to use drugs without authorization. It is now an administrative punishment one, if the amount possessed was no more than a ten-day supply of that substance. Possession remains prohibited, and criminal penalties are still applied to drug growers, dealers and traffickers.

They focus on rehabilitating addicts, but a three person commission has a large sway over the individuals rights, this isn't within the judicial process.

For instance:
Fines, ranging from 25 to 150. These figures are based on the Portuguese minimum wage of about 485 (Banco de Portugal, 2001) and translate into hours of work lost.
Suspension of the right to practice if the user has a licensed profession (e.g. medical doctor, taxi driver) and may endanger another person or someone's possessions.
Ban on visiting certain places (e.g. specific clubbing venues).
Ban on associating with specific other persons.
Foreign travel ban.
Requirement to report periodically to the committee.
Withdrawal of the right to carry a gun.
Confiscation of personal possessions.
Cessation of subsidies or allowances that a person receives from a public agency.

So you see unless you're willing to go the full monty you can't just say "decriminalize" drugs, you need the stick with the carrot.
Also recreational use of cannabis is still illegal.