They already are. It's not something that's changing because of UBI. And if it's truly a UBI, then it will be a lot harder to deny people that basic income than it currently is with welfare and social security.
IMHO it's a lot harder to deny a concrete, targeted entitlement than a super-wide payment for everyone without a reason/need that might just get reduced to nothing over time.
It's much easier to deny that people meet a very specific set of criteria required for such a targeted entitlement, than to deny that they are citizens and alive.
