By singling out an economically and socially productive segment of rural communities to attack, he is in fact attacking those communities as a whole.
(Incidentally, it's not just a matter of food. Where do you think the concrete, asphalt and timber cities are made out of comes from? I've not seen many quarries or forests in major cities. Rural communities as a whole, not just farmers specifically, make urban life possible.)
Personally, I view a city that is safe from cars as the greater freedom. It means my children can walk to school/friends/store without the very real danger of being killed. Cars are the number one cause of death for children.
We have an urban growth boundary now which tries to limit further sprawl, but it can't change the fact that the Portland metro area is 2 million people most of whom live in single-family homes, or maybe low density suburban apartment complexes.
> for slightly more comfortable transport
In some large metro areas, maybe. Outside of that bubble millions of people depend on a car to even be able to work.