Rebellion by the incompetent will not lead anywhere
There may be a very very small amount of competence orchestrating and puppetmastering, but the rebellion works best when the majority of its supporters act on impulse and stop reasoning and thinking critically about the consequences of their vote (or decision not to).
Of all the unlikely things to happen, these seem like the most unlikely. There's a bigger chance of a violent mob blowing up every datacentre on the planet than there is of UBI being implemented within the next century.