I support the idea of a UBI because any kind of welfare system with rules as to who is eligible will rule out some people who are very much deserving on a technicality and there are people who are entirely caipable of working but go out of their way to cheat the system.
So in a way I support it for slightly “right” reasons. I want a level playing field, nobody should be fucked from the jump and nobody should have to fight for the very basics, beyond that you should have to work, contribute, create… do something to bring value to the greater world.