Consider then, if you will, the causes of this deficit in core human motivation, and I don’t agree this is actually a thing.
My belief, from the perspective of lower middle class, psychologically challenged, is that motivation is eroded through limited options, and structural impediments to growth.
Any basic income would certainly expand options, but the enfranchisement provided by a share in the Commons, a concrete inclusion in the family of humanity, a specific social contract, can only act against despair, and for motivation.
My motivation for this is actually more about providing inclusion and self worth than a BI, but the basic income supports, and is provided by the other.
Thanks so much for reading, and thinking, and pointing out this deficiency in my explanation.