Give people the technology to meet their needs and survive happily regardless of the surface of the land they’re given. Land that cannot be built on is cut out of the equation. Vertical farms are used to grow crops instead of direct land cultivation. Water is provided in accordance with user use and if there isn’t enough, more is desalinated. Electricity and homeostasis maintenance is achieved with technology attached to the house.

Divvy up land by plains and fields first, then extend from there. Even land in the middle of fucking Siberia can have comfortable housing and farming done on it with the right technology. If it’s too cold or too hot, dome it over. Even the fucking ocean can have artificial islands or floating platforms constructed on it. No one has to go without territory.

It doesn’t have to be hard.