I mean, that's nice and all, but it seems to be purposely obtuse. Again, just look at the current infrastructure. The width of the roads, traffic laws, signs and signals, intersections, highways, etc. I guess you "got me" in that, at some point, road construction was driven by cyclists, but that pretty clearly shifted some time ago. I'm not sure what point you're trying to make.
The prevailing notion that "roads are made for cars" is self-fulfilling, as people use it as justification for making roads further unsafe for bicycles (and other road users).
Seems like the other way around to me - if roads are made for bicycles then there is no reason to invest in infrastructure like dedicated bike-paths, bike-lanes or even wider shoulders.
