many of those tribes had permanent settlements. also, being nomadic does not mean you can not recognize their land. before europeans came, the native american nations would recognize each other's land, even the nomadic tribes. they would even negotiate land use deals between one another. the nomads mainly moved with the seasons since they didn't control agriculture technology yet (but many had proto agriculture). thus they moved from one side of their land to the other. it's not much different than canadian snow birds that leave canada to go to the usa when winter comes. if they leave canada temporarily, does that mean we can take their homes in canada? it's a silly cope that europeans have to say they have a moral right to take native lands because of xyz philosophical reasons. the only reason you need is that a) you want the land, and b) you have greater power to take the land. if the native americans cry about it, then so be it.
Canada