Further, what you sketch out in the second part is exactly my biggest squabble with Germany. Let's see how a society that lives off of exporting machines fares in the future after fighting innovation and entrepreneurship for two generations now.
That said, I still don't see even in the slightest how these are "the worst working conditions on earth".
It was not completely wrong. Being an employee gives you those benefits (eg you can stretch parental leave to 2yrs with part time work, the minimum vacation is 24 days instead of 30, but there's unlimited sick leave), and it is incomparable to the ridiculous PTO/PSL system in the US.
However, companies by and large only do this due to external pressure (govt, unions, competition), not any kind of inherent cultural benevolence.
In tech/engineering, this typically means that instead of direct hiring, hiring through agencies where people are regularly rotated out of projects to not have to become permanent employees, and without the regular benefits of the host company. Freelance tech work is actually becoming rare because German law has Duck Typing for determining employment status, so if you're de facto salaried, and the govt finds out, both the employer and employee suddenly owe all the relevant employment taxes, even years back, and because this has been abused and has been cracked down on, nowadays getting freelance work is difficult.
Of course, that somehow didn't stop companies from trying to pull the same scam with "gig economy" BS on the lowest paid workers the past few years.
It is easy to win at exporting if you pay employees in a functionally worthless currency. Germany's trade surplus is 10% of GDP, this is roughly where China was at peak. Germany can win at exporting because: consumers are conservative and will accept large corporations milking them, and other countries in Europe are willing to let Germany export deflation to them.
It is one of the most unsustainable economic models (and the source of significant global financial instability...China's trade surplus peaked in 2008, not a coincidence) and that is before you consider the need going forward for high levels of innovation, business creation, etc.
I didn't say on earth: I managed that section, I said in the developed world. If you provide a counter-example then I will accept you are correct.
The pensions in The Netherlands might actually be better arranged for now, but it's likely at some point that the EU will (indirectly) try to gain control over Dutch pension funds (e.g. by forcing these funds to allocate a certain percentage of spending to buy Italian bonds).