I think many users of this forum understand that the War on Drugs is an ongoing, horrific moral crime, and the importance of speaking up, and many, I'm sure, have been involved or are still involved in efforts to make more people aware of this fact, and reduce the oppression and injustices experienced by drug users worldwide - to whatever extent they are able to do so.
I'm not sure what gives you the impression that users of this forum do not understand what is, obviously the most pertinent issue directly affecting the users of this forum who are drug users, the oppressed class, of a sort, that they belong to, or at the very least people that they know.
I guess it depends which parts of the forum you've spent time in - there are, admittedly, unfortunately, some absolute morons who just don't understand anything about anything really, apolitical nihilists who are just selfish "I'm fine so fuck everyone else" types, Trump supporters (a more USA-specific form of rock-bottom stupidity), Reform/Farage supporters (the UK version of Trumpers), and, I guess, supporters of populist, antihuman, fascist grifters in whatever locality one might be based who invariably are pro-prohibition, pro-War on Drugs, generally profoundly evil people.
"Current Events & Politics" is a bit of a cesspool for that, in my experience, but it's not the only place you'll find these people.
But, that's true of every group of humans, unfortunately. There are just some people who don't care about anyone else, don't really know how to think critically about anything, and will indeed consistently and enthusiastically participate in their own oppression, as you put it. It's not always their fault, as difficult as that is to reconcile with the damage such people do to the future of humanity at large... so some compassion for them is warranted, as difficult as that is. Anyway, what is it that you perceive is not happening here, that you think should be happening? What would you like to see change, here, in this little corner of the internet, specifically?