Friend of mine is a "small is better" architect and developer--urban infill, high density, small houses on small lots, etc. He gave a talk about that in Nevada City--the capital of aginghippiestan --and they about tar and feathered him and ran him out of town on a rail. A bunch of locals in the area just killed, at least temporarily a PGE tree cutting project.
I don't disagree with you that having a bunch of tiny communities scattered through the woods is bad, and not just from a wildfire standpoint. Much as a lot of people don't like them, from an environmental standpoint big dense cities are the best. Apartments in big buildings don't have 4 outside walls and most don't have an outside ceiling, so much more efficient to heat and cool and most people use mass transit. (I don't live in a big city so obviously I'm being hypocritical about this.) If we were all still a small number of hunter gatherers and subsistence agriculturalists we could all live closer to nature--in the middle of it. But that ship sailed about 5000 years ago and I don't see us turning back the clock that far.