I dont think we're heading for the 30's and arguably the 1910-40s were probably more progressive than the mid-century both artistically and culturally compared to their preceding years. I think a lot of people don't remember how conservative the US was between the 50s and 90s. A lot of the stuff we consider acceptable or OK today was really not tolerated at all in public. See, for example, LGBTQ acceptance, minorities and women in positions of power, welfare state etc.