Communism would imply a lot more than providing a base income to everyone to keep them out of abject poverty. You might be thinking of socialist democracy which maintains a balance between unfettered capitalism and full-blown communism.
In the UK you get about 10k personal allowance before you have to start paying tax. That is one form of UBI although it requires you to earn an income (and you actually start to lose this allowance once you start earning over 100k). You could replace that all the same with a system that dumps 10k into your account every year and then starts taxing you for every penny earned (at a higher rate).
We have had the past 100-or-so years to learn, empirically, that both unfettered capitalism and full-blown communism are not particularly good ways to maintain a healthy society.
In the UK you get about 10k personal allowance before you have to start paying tax. That is one form of UBI although it requires you to earn an income (and you actually start to lose this allowance once you start earning over 100k). You could replace that all the same with a system that dumps 10k into your account every year and then starts taxing you for every penny earned (at a higher rate).
We have had the past 100-or-so years to learn, empirically, that both unfettered capitalism and full-blown communism are not particularly good ways to maintain a healthy society.