I think the question is how do we make prisons less cruel and dangerous, and lower recidivism. Of course there is a backlash against enforcement when the solution is locking people in cages.

Considering that thousands of people are arrested for drug possession every year in Singapore, to say nothing of the number of people who use drugs in Singapore and avoid legal action, then yes.

> The question then is whether we are willing to tolerate the level of enforcement necessary.

Drug use is rampant even inside prisons, which are literally the most surveilled and draconian environments on the planet. If a carceral approach to preventing drug use doesn't work even within prisons, what makes anyone think it can work in society at large, even if people were willing to turn all of society into a police state?