One of the multitude of examples how law in the European Union (on average) is geared towards protecting the individual (citizen) whereas in America it seems to be geared towards the needs of the (big) corporations.
I think one big root cause is the US idea of "the land of oppertunity" where "an immigrant can step off the boat at ellis island, work hard, and own a skyscraper in Manhatten". In Europe, with it's long history of classism, the lower classes knew that they would never own the company, and trade unions were stronger, which led to stronger employement law.