What the unemployment numbers, even digging into U4 vs U6, don't account for, is how hard people have to scramble to find those jobs. it's not that they aren't out there, people do still need to pay bills after all, it's that gone are the days when you'd just show up to the union hall and know you'd just be assigned some work. That feeling of solidarity, that you can just rely on the fact that you're needed and necessary and can get a dollar to feed yourself today, whenever you need a dollar. That doesn't show up on unemployment numbers.
Arguably driving for Uber/whatever does that today, but you can't seriously believe that you can build an entire economy off of everyone delivering people and food to the rich.