If I were the child of a wealthy man, and inherited his income, I would have my basic income supplied by my inherited wealth. No one would argue with my lack of employment.
Would I be a better or worse man for it?
Well, that's up to me, right?
Whether we like it or not, every person alive today has inherited a vast sum of wealth, the accumulated knowledge of generations, all of it employed so as to make our lives easier. I don't know how my HVAC works, how my food is grown and harvested, how antibiotics are manufactured, but I benefit from all of it. We live on this inherited largesse every day, just as Bertie Wooster survived on his inherited income and the wisdom of his gentleman's gentleman, the illustrious Jeeves.
We ALREADY HAVE UBI.
We just call it A/C, antibiotics and grocery stores.
Now, we are being told that further UBI will destroy us.
A larger non sequitor would be hard to imagine.