Sure, and I agree, but what your approach is forgetting is that you're not a dictator who can change the laws at will, and the people must still obey them. Politics takes time, and the community won't let any democratic government force revolutionary new laws on them without trying them out first. So decriminalisation is the first step. The Netherlands has one of the most advanced drug policy frameworks in the world, and might be in a position to establish government dispensaries - however, even they started with decriminalisation, the rest of us are just behind.
UK has a fairer legal system overall, but Meta will delay, delay, delay to avoid accountability and keep using the Threads name for the next umpteen years, and at some point the original owner of the trademark will settle for a nice payday (though nothing like what they'd win if they beat Meta's team of lawyers... which won't happen).
Coca needs equatorial latitudes and high altitudes, so even the Mexican mountains probably don't grow it that well. I've long thought the New Guinean highlands would be a great place to grow coca. As for khat, it should be growable in the southwest US.
Here's an example that's playing out live - the Australian Capital Territory is decriminalising several hard drugs as of tomorrow. The conservative media in Australia is making all kinds of ridiculous prognoses that I highly doubt will come to anything except a more humane approach to something most can't explain coherently why flat-out prohibition has been the status quo around the world for a century.
I think the main consideration in decriminalisation is reducing the burden on law enforcement and the courts, but this cost saving must be passed on to the health services that must go further than they currently are resourced to do. The thinking is, since police treatment and imprisonment of addicts leads to worse health outcomes anyway, we might as well help them with their addictive behaviours and minimise harm instead of adding to this harm by vilifying hard drug users. Most who choose to use them in the first place are already suffering with other psychological and physical traumas but lack the knowledge or ability to address them in the healthiest way.
We should have learnt this by now - that chastising people with a bad take, even by something seemingly as innocuous as mass downvoting, actually tends to cause people to hang on to their beliefs harder because they're being attacked for those very beliefs. It causes them to harden and somehow paradoxically confirms they were right all along. Our brains do unintuitive things quite often!
So you want people to know you use GNU+Linux, and at the same time believe you have important "private information" you're likely to disclose while recovering from a general anaesthetic?
Trickle-down Jesus, with an exceptionally wide stance.