So your argument is that you can’t have a utopia if you can inherit your parents belongings?

I would also argue that the accumulation of goods and hoarding resources would not be tolerated. So if you’re rich before the fall you’re probably not now. But my assumption is that if you can justify owning lots of land by something other than greed then you probably won’t keep/get it.

Yes land would be a finite resource and would be closely regulated.

Star Trek is a dream that will never come true because it assumes that all humans would be rational and reasonable. That’s just inconceivable.