It's useful to remember that while the extreme libetarian position is mostly American it's a minority position even in America. It overton windows the whole discussion, but most people who don't wear seatbelts are not "Free Men on the land" quoting Magna Carta. They're just not bothered.
I do not think the verbing of "Overton window" conveys the meaning you intend.
Did you mean, "it constrains itself to the Overton window?" Or, "it attempts to move the Overton window (up/down)?" Because saying it "overton windows" the discussion is meaningless.
