We are at step zero, which is we have the capability of measuring the problem.
Lets be frank: there is plenty of people who care, and those people are providing those measurements (CDC analyzing death certificates, especially for Opioid deaths). Whether or not our leaders respond is simply a matter of democracy. We need to elect leaders who care and will do something about it.
But for now, step 0 is done. The public is becoming aware of the problem, and as far as I can tell, everyone is on the same page with regards to facts. Not even Trump dares to call these statistics "Fake News".
Over the next 10 years, I bet this problem will be solved. There really aren't any political headwinds that I foresee. There aren't any political opponents on this issue.