I think the theory is something like 'ok, the bucket will be smaller but we're the same so effectively we will grow' where 'we' is the wealthy assholes that power this movement.
The fact that a couple of million (billion?) people could die as a result of their landgrab is none of their concern. The billionaire class appears to be divorced from reality to a very dangerous degree, and there are enough useful idiots willing to hand them their support to make this a very dangerous time. I don't think we've ever been closer to potentially losing it all than we are right now.
You're looking at 'divide and conquer' on a scale that we have never seen before and there are enough dominoes falling already that I don't even know if it still can be arrested.
A disregard for other people seems to be a prerequisite to becoming that wealthy for me. Hope i'm wrong, guess the good ones don't make the news. Surely they must exist