This is a problem we already have to deal with: people got rich enough that they could afford to pay people to overfish the oceans, and we responded by limiting how much people are allowed to fish.
That is, I don't think UBI adds a new problem beyond "how do we make sure that humanity properly accounts for externalities" and "how do we make sure that AI does what we want it to do".
I was using fish to make an obvious example. The answer is regulation, but there are so many things like fish in the world. Do we have to have a regulation for every single one? It seems like it will end with whack-a-mole micromanagement of everything. It almost seems like we'll get communism eventually out of it. Except there is no all labor is of equal value, because there's no labor. I wish there was some alternative.
I'm sorry, I just still don't see the path by which UBI leads to a dramatic increase and how much regulation we need? Would you be able to give an example that is specific to UBI, and that describes a problem we wouldn't have without it?
That is, I don't think UBI adds a new problem beyond "how do we make sure that humanity properly accounts for externalities" and "how do we make sure that AI does what we want it to do".