The elephant in the room regarding legalization is the overburdened prison system. As we saw with the recent Attica anniversary strikes, organized prisoner resistance is a
huge threat to the security and economic status quo. Nothing would galvanize resistance like being incarcerated for a crime which is no longer illegal.
Therefore in a more liberal climate I would expect to see progressive access laws continue to be available to non-impoverished white populations, with the federal schedule remaining intact. Now, I simply expect a return to the old strategies for corralling free labor.