Can you provide any links that show that every time it’s tried, it fails?

https://en.wikipedia.org/wiki/Universal_basic_income_pilots

Skimming this list, there seems to be one really marked failure, in Finland, but that’s disputed I read also.

Can you list more failures?

you will need to provide evidence for that assertion

When? Where?

It has never been tried.

Remind us what the U stands for?