I think you should understand this in the light of e.g. freedom fries and Trump's executive order re: "beautiful" public buildings. That is, once you're in a cu

I think you should understand this in the light of e.g. freedom fries and Trump's executive order re: "beautiful" public buildings. That is, once you're in a culture war, the dumbest things become battlegrounds. Its also important to understand that the buildings in question were meant specifically as worker housing, so it was a collective project funded by workers' unions, each with particular ideologies. If you were part of the liberal housing co-op that advocated for flat roofs, you were gonna live in the flat-roof buildings. That is to say, you didn't express your politics by choosing your roof, rather, you chose your politics, and your available roof shapes were informed by that choice.