Earlier quoted context omitted.
Germany has similar workers' rights and protection from firing, yet it has a lower unemployment rate.
Not that I think employment rate means much (look at japan's very low employment rate compare to their economic growth since 1989, its very low [2.4% now]), but their unemployment rate for April came in at 4.9%, whereas in the US was at 3.6%.
"Harmonised unemployment rates define the unemployed as people of working age who are without work, are available for work, and have taken specific steps to find work. The uniform application of this definition results in estimates of unemployment rates that are more internationally comparable than estimates based on national definitions of unemployment. This indicator is measured in numbers of unemployed people as a percentage of the labour force and it is seasonally adjusted. The labour force is defined as the total number of unemployed people plus those in civilian employment." (https://data.oecd.org/unemp/harmonised-unemployment-rate-hur...)