Not really. Sweden decided a long time ago that if unions and their industry (etc) counterparts come to mutual agreements there will be a stable situation that benefited the nation as well as both the workers and employers. The workers would not want to harm the companies that employ them, and the bosses have to actually bargain with en entity that has teeth and can hurt them if they step over the line. If all this was ruled by laws then you would get the well known game of "who has the most politicians in their pockets?". Which tend to give the workers the short end of the stick.
So the main opponents are forces that really would want serfs rather than employees, but unfortunately can't do that any more.