> Both factions completely ignored white Midwest people in 2016, though.

No, they didn’t both do that; the progressive populist faction, particularly, did not (the fact that the progressive faction was outperforming among constituencies like rural whites, both nationally and specifically in the Midwest, that were traditionally seen as more conservative, whereas the neoliberal faction’s strength was focussed in what were conventionally seen as progressive urban/coastal strongholds and minority constituencies was one of the most heavily reported surprises of the primary, and was a direct result of that.)

The neoliberal faction won the primary and controlled general election strategy, controlling both the Presidential campaign and the DNC, sure, but it wasn't both factions ignoring the constituency you point to.