UBI is some bullshit handwaving to try make social safety nets sound fair. (We give the money to everybody!). We should just stop kidding ourselves and build a more caring and supporting society.
The reason to write that first sentence is because I pointed out that UBI helps those making less than UBI. Of course then it is pertinent to UBI in so far as it is a mechanism to achieve that goal.
Your original claim that UBI would cause laziness and depression is not further supported by making more claims that UBI is there solely to seem fair.
An argument that I have heard for UBI is: UBI is more effective than social safety nets that are doled out by merit, decided by committee. If you recall the so-called "death panels", government committees who decide who gets what healthcare, there is essentially that with various social programs. UBI has the virtue of simplicity, and uniformity helps ensure reach and therefore efficacy.
I am personally unsure whether UBI is the most effective way to build a supportive society, or if it is as good as its proponents claim. Though, neither do I think (respectfully) that your claims about UBI are well supported either
Sorry, I was attempting to make two separate claims, both perhaps over generalizations for the sake of impact.
OTOH, I think you also neglect what benefit UBI would have to those who are currently the poorest. Child poverty, poverty, are big problems for millions of Americans.