This is a good point for other issues as well. Support for legal recreational marijuana nationally has been at a decently strong majority level for a while now,

This is a good point for other issues as well. Support for legal recreational marijuana nationally has been at a decently strong majority level for a while now, but that hasn't resulted in any action at the federal level. It hasn't even been rescheduled when Democrats hold the presidency, and support within the Democratic party in particular is extremely high. That, too, is an issue of depth. Yeah, most Democrats and even Americans support it at this point, but for most it's not a major issue. That's part of why it's been so common to pass as a state-level initiative. If you actually get it to a popular vote, it'll pass because people are at least lightly in favor, but legislatures are slow to pass it themselves because it has little impact on their re-election chances.