What paltry amount are we discussing? The concept of UBI is that it pays a living wage, enough to feed, clothe and house someone. It might not eradicate wealth inequality but it definitely narrows the gap/reduces it.
I'm assuming you accept that the poor are getting poorer and the wealthy are getting wealthier - how do you propose to stop that without UBI?
UBI alone is not a solution, it needs to be accompanied with access to adequately funded education and affordable housing and healthcare. Education is the #1 driver of success, and at minimum a better commitment to education by the United States will pay back multiple times over. Additionally, what leads you to believe UBI will allow an individual enough to feed, clothe and house themselves? Sure, that's the "idea" but in this world you think that would become a reality? No way. UBI as implemented will be watered down and it's effect will be a net zero, triggering the conservatives to cry "see! it does not work!"
I'm assuming you accept that the poor are getting poorer and the wealthy are getting wealthier - how do you propose to stop that without UBI?