> You could just take that money and give it to a million other causes more socially valuable than distributing BI to everyone.
You're thinking of it as extra money. Try thinking of it instead as money that's already being paid to everyone, just made unconditional. People are not (generally) starving in the streets, so the money is clearly being spent to keep them alive. Some of that is via benefits, which BI would replace. Some of it is via pay-for-work, and given a BI employers could pay less with the BI making up the difference. You can make a separate argument about whether a BI removes incentives to work, but AIUI evidence from pilot programs so far suggests that it doesn't.
> Heck just think what some of this could do to research.
How many of the famous names in science were able to make their discoveries because they belonged to a gentry class who didn't have to work for a living? How many people have to leave academic research because they can't get funding any more? What tends to happen to OSS contribution rates once people move from study to full-time work?
Heck just think what some of this could do to research.