The “slippery slope fallacy” is proven to be, itself, a fallacy yet again. The slippery slope fallacy fallacy.
The "criminalize drugs" meme is losing ground not because we're falling down a slippery slope, but because the bodily autonomy and individual freedom meme is proving to be more powerful and taking ground by force.
It's not a slippery slope.
It's a memetic war, and the stronger meme is gaining ground step by step through constant, brutal battles.
And we're winning.
I agree: you are winning.
Another thing powerful people use to control the masses is criminal law. Criminal drug laws have now been used by the rich and powerful for almost a century to stomp on the face of marginalized groups and societies while giving their own foul and weak progeny and local society a pass.
This is what's coming to an end, and you are not on the side that history will look kindly on if you resist this change.
However, if you've done your own moral math and determined criminalizing drugs to be a net moral good, then please continue the fight, because we all must fight for what we think is right, even in the face of seemingly inevitable defeat.
Criminalizing drug use in and of itself is evil and immoral. And you are an enemy of individual liberty if you support it.
If we must, we should criminalize the resultant negative behaviors that sometimes accompanies drug use.