EU labor laws protect the workers. I dont get why US Americans often think these laws dont benefit the workers.
Strong worker protection ends up making the cost of hiring new workers higher. Companies react to those costs by a number of means like delaying hiring, hiring contractors first, firing within the probation period when they might not have normally, etc, etc. Whenever the laws are changed, a new "optimum approach" is developed.
And like rent control, labor laws often benefit the people who already rent/have a job. For people who are looking to rent/looking for a job, they can make it harder as the barriers to entry just got higher.
It's not right or wrong, it's just a trade off.