https://www.youtube.com/watch?v=0Z760XNy4VM
What happened next is absolutely astonishing. When the mice had nothing to do and nothing to work for, their society collapsed upon itself. Females stopped caring for their young. Betas began guarding the elite females, despite them not breeding with anyone. Fights broke out for no reason whatsoever. Mice stopped eating.
Their population peaked at 2200, and then died off extremely quickly.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1644264/
It was a big, fat, giant mess. And it's exactly what will happen to us if we don't have something to work and live for. Hell, it's already happening.
I don't think humanity survives with basic income as planned. We fall apart when we have nothing to do. We're no better than mice - we are still just animals with a larger hierarchy.
I'd rather see unproductive humans digging and re-filling holes in the ground than getting paid to do nothing. Or something like the biking experiment in Black Mirror.
Yet we need to do something as automation grows. Society is in for some serious decisions, and no country currently has the leadership to be able to tackle them.