Yeah, again, you are imagining something like a Mad Max post apocalyptic scenario where everyone is left to fend for themselves or starve, but we can feed everyone very efficiently without any electricity or heat if we just planned it.
Even if you someone magically found a way to harvest all the food by hand, How would you distribute to everyone? Without electricity our highly efficient distributions systems don't work.
I could make a plan to launch myself into outer space. Doesn't mean my plan will work. It also doesn't mean that the people that my plan will inconvenience are just okay with it.
Sorry neighbors I need to build a launch tower here I'm taking over your backyards, you can have them back in a few years its okay, its part of the plan.