Wheat domesticated us because agriculture put the politics and power into the hands of the landowners (whoever is big enough warlord to control arable territory)
No that's just basic control and domination of resources that exised eons before humans did. Lots of animals have and guard their "territory" and don't farm. Plenty of human tribes did the same before they had developed agriculture.
That is true, but you could always move to another region and there would still be some level of fish & game.
a) the ability to have grain stores, etc thru the winter; and b) the long food cycle of plant in spring, harvest in fall; really put everything on steroids in terms of what "territory" was important (the grain stores, the planted land) and what territory was less important
You can see this in the development of forts, castles, etc later on where the "keep" was the most protected thing, and held the grain store for an entire village
