> one of the main counterarguments is that people will just stop working

One of the main counterarguments to the universal basic income is that napkin math does not work out. You don't even need to get the "science" involved, just relatively simple algebra. Humanity does not have the resources for the majority of the population to receive benefits out of thin air. And no, $3200 AMZN is not really a resource most people would feel comfortable surviving on, unless they can exchange it for something of an actual value.

p.s. the Amazon bit is related to the "let's divide the wealth of the billionaires and we all will live happily ever after" mantra.