I think UBI is a pipe dream with the current power structures. A proper UBI that covers all basic living expenses - meaning that you could actually live a dignified life solely on the UBI - would radically shift the power balance from capitalist/business owners to workers. I just can't see capitalists willingly dismantling their own power and leverage.

For this reason, I think that any sort of UBI will likely be woefully inadequate and may even be intentionally devalued over time, especially if it's used as a reason to dismantle welfare services.