I can understand how they are more hesitant with other drugs and possession (though I'm with you on full decriminalization like Oregon did), but I at least understand this one. I _do not_ understand how weed isn't legal yet. It's very popular, profitable, and will help reduce issues in South America.
Edit: I think there even is a double win strategy. First you reschedule the drug. Second you legalize it. So even if you want to play political games there's advantage. The numbers above were for full legalization but they just rise when you include medicinal (less people are ready for full legalization but in favor of medical and rescheduling).
[0] https://news.gallup.com/poll/323582/support-legal-marijuana-...
[1] https://news.gallup.com/poll/350486/record-high-support-same...