if the market price for garbage collection rises that high, every other job that seems 'better' will have to rise the pay too, else people will all go into garbage business. who will clean my seat at the peep shows then?
and if every job costs that much, the product of it will have to cost accordingly. in the world of UBI, either a loaf of bread will cost 300000 of cold hard cash, or there will be no one to build the first generation of your precious robots. hence the nightmare.
anyway, back in the 1960's some idiots already forewarned that factory automation was fast approaching and it would make everyone lose jobs. google automation hysteria. what they proposed was eerily similar to UBI. this new iteration is just history repeating itself. guess they didn't predict society just changing to find new jobs.