Here, let me quote his last paragraph before the edit for you:

I may not be the target audience though as I also totally want socialized healthcare, free education extending into the collegiate level, and a UBI replacing all welfare programs, because those fall under the “General Welfare” set out by the Constitution and those things would cost less than what we have now for far better outcomes.

See that “I also totally want socialized healthcare” line?

He literally said “I totally want socialized healthcare”.

But that’s where socialized healthcare comes in. None of what you brought up would have to be covered by any sort of UBI. Especially since if we had a national UBI we would probably already have socialized healthcare since the latter would be easier to get through than the former.