The dutch isn’t earning ten times less than the average US developer. At best two times less, but that’s it (and FAANG salaries in US tech hubs are in no way representative for average US dev salaries)

But it’s exactly the same type of complaint “salaries in SFBA are higher for the same job in Amsterdam”, why shouldn’t a Pakistani dev level the same complain about developers in Amsterdam?

For the same reason i outlined above: communication. Different time zones, language barriers, cultural barriers and so on. The communication between the SFBA and amsterdam team may still be easier due to more similiar cultures than between SFBA and pakistan.