[Tiktaalik]

An advantage of universal systems is that because everyone is treated the same and benefits, it is less likely to create critics of the system from people who would only criticize it because it’s unfair that they don’t benefit. With less critics of the system, the system is more stable and less likely to be undermined and dismantled by future governments.

The progressiveness of a universal system still exists, whereby lower income persons benefit more than higher income persons, it’s just expressed via a progressive tax system, and not means testing.