I don't quite follow the logic of either of these proposals. If (a big if) AGI displaces human labor, then most people will not have any income from employment. If that happens, who has the income to purchase the output of the AGI? If the addressable market served by the AGI declines drastically, then where do the profits come from? If the AGI has low/no profits, where does the tax or dividend come from?
The only solution I can come up with to this conundrum is if the output of the AGI is provided for free to people so the value is captured directly without the intermediating commercial steps. However, there will still be friction in this process (in the form of physical inputs) so I don't see how this is a long term sustainable approach.
Good thing I don't believe in AGI so this is, at best, a philosophical debate.