Do those products have worldwide warranties? Often not. That is a real issue with buying electronics outside your home country.

They usually don't, but that only strengthens their point. People are choosing, instead of paying a European price and getting a very long warranty, to pay a cheaper US price even though they likely won't even get the benefit of our awful 1-year or 90-day warranty.

Anytime you get something "for free", you're paying for it one way or another. No amount of legislation can change that, they might as well legislate pi=3.

those times have long been gone. Warranties were not the driving factor, but taxes and exchange rates.

Today, the price difference is negligible on most hardware (smaller than $50 on MSRP on an iPhone if you compare New York to Paris for example)