This doesn't depend on the capability of AI to reach such a point, but requires the government to have unified consent to accommodate such a scenario.

I can't see the MAGA infested GOP controlled house giving in to the idea of UBI or at the very least a far more flexible free market based around AI dominance in order to relax the working human population.
The Republican base in general tends towards blue collar pull yourself up by the bootstraps never giving hand-outs kind of mentality, despite the hypocrisy behind what hand-outs they might receive.