It will have to eventually. If the current rate of technological advancement continues, it is only a matter of time before every job will be automated. What would we do then if there is no UBI?
Die (say the exploitative elite). What is your answer to that? Don't try fighting them because they control the government and power. (Just saying it from their pov.)
As for it having permanence, I don't think it's a given, even if it's statistically likely for the majority. People have worked themselves out of poverty for ages.
