> Well, in France similar laws exists and the unemployed rate is at 7% (but is likely below the actual rate, as you have to be actively looking for a job to be counted as unemployed)
This is effectively how the unemployment rate is counted in the US too: you have to be actively looking for a job (be a jobseeker) to be counted in the unemployment rate.
There are millions of people who are no longer jobseekers for whatever reason. Most often it is due to becoming more and more demoralized/demotivated (Americans statistically, adjusted for population, have this problem by far the worst of the entire developed world), having a legal record that makes a person virtually unemployable (we lock up our citizens at a higher rate than anyone else in the world), people having to be full-time caretakers for a family member (due to a lack of proper and adequately funded social insurance), disabled people trying to get benefits for several years—and often failing (Of the developed world, only in South Korea is it harder to claim disability benefits: this really says a lot because the perception around disability in Asia, but especially Southeast Asia is deplorable).