First, there’s a reason why farms were small, because there’s only so much ground one can work within the growing season.
Secondly, even with enough horses and plows, the lack of hands, farriers, veterenarians leather workers and more doom it from the beginning.
lack of hands will not be an issue if everyone is starving. Farm hands will first try to work for their food.
vets are only needed for animals you intend to keep for breeding. Otherwise they are meat. Farriers exist in places. Right now it is a dying profession. I know of several younger people that would love to make a living that way but see no point since there is not enough money there. Leather working is not hard. My husband does it.
When was the last time you went without electricity, running water, food, and had babies screaming for food...now you know why I prep. These are the things a mother's nightmares are made of.