That's exaggerated. You make generalities from special cases. I know students who are like you said, but they are far from being the majority! And a PhD thesis is always valuable. Having a PhD shows one is capable to solve a difficult problem during several years, working hard on it everyday. Isn't this a quality searched for by many companies (no matter what is the topic of the research)?
I could complain about most the sentences of this post, but only focus on these two as a start.
"Having a PhD shows one is capable to solve a difficult problem during several years"
That used to be the case. There are far too many PhD-factories out there, also in Europe. A Dutch university gets a €93000 bonus for each succesful dissertation. The number of promotions has doubled over the 1990-2010 period, and the quality is down. Not all PhDs are created equal, and title inflation is rampant.
Again, this is a generalization. What is true in the Netherlands is not necessary true everywhere, and conversely, I know very good Dutch PhD students and professors. They still exist, and the bad one are usually not going through the system.