Yep; though the usual corollary is also that you'd cancel a bunch of other welfare programs -- that is: you're replacing benefits with UBI, not just tacking UBI

Yep; though the usual corollary is also that you'd cancel a bunch of other welfare programs -- that is: you're replacing benefits with UBI, not just tacking UBI on. (Not advocating for it; just saying that 70% of tax revenues makes it sound like you'd nearly double taxes to cover UBI, and that's not quite true.)