Roads and highways would be perfectly fine cycling infrastructure, if we just got the giant motorized death machines off of them.

I used to cycle 7 km to work, but now, after moving to suburban village, there is no way to go other way than car. Especially with small kid. Unless you are fit enough to do 25 km every day by bike and risk your life (and potentially kid’s) on the street between cars. So no, there is not realistic to “fuck cars”. I am speaking from European perspective, probably US has the car things much more fucked up.