Biggest question is:
Where is the money coming from to pay those guaranteed wages? Government work does not produce anything that pays for itself, so, they’ll have to extract it from the real producers, but, it’s doubtful there would be enough productivity from the private economy to pay the guaranteed jobs. Logically it can’t work.
There is a damn in Oklahoma that has produced electricity since the WPA built it in 1940.
Guaranteed employment used to mean Military service and they turned down few from a court that gave kids a choice. Jail or enlist.