I get what you are saying but I want to point out that SOME American families have been in the US since before it was the US.
For instance, my family has been in what is now the US since the 1640s. My family had a farm that was in the family for many generations in fact, but I don't miss it. I have bought and sold many, many houses over the years.
My family has been around for a while too but I was not aware of any kind of generational properties. So to me, moving to a new place is no big deal. Still I can understand anger of being uprooted from one's homelands. It's not fair, it's not right. However, sorry no guarantees that life is going to be fair to you.