So I guess you can't buy a knife in europe? (by your own logic).
You can't buy a knife that would be dangerous to use by being badly made, or which material would contaminate food. So for example,a knife containing phthalates would not be allowed to be sold in stores. This is my logic - I do not want equipment which is unsafe to use to be sold in the EU - a car that has a cabin which folds like origami in a crash[1] should NOT be allowed on the market.
Guess what happens to the passengers of this car? I imagine their consistency is somewhere between peanut butter and freshly squeezed orange juice: [1] https://www.youtube.com/watch?v=CRU__x5UAo0
The same as you can trust that the carrots sold at a local supermarket do not contain arsenic - there are regulations against that. But according to your logic, it would be better if there were no regulations, surely a producer of arsenic-containing carrots will naturally go out of market after sufficient number of people die, because no one will buy their carrots anymore,right?
I believe that a car with a cabin that folds like origami in a crash should not be allowed to be sold in the EU(or in fact, anywhere).