My back of an envelope guesstimate indicates that the factory labor costs for assembly of a non-custom made bike by a major manufacture is a small if not insignificant portion of the final sales price for any $1000+ bike sold in the U.S. The Dutch labor cost "premium" is a smoke screen for charging what the relative tony US enthusiast traffic will bear.

What I don't have an estimate on is what percentage of a typical Dutch type bike sold in the U.S. was manufactured in NL or any Western country? The tires, the IGH or derailler assemblies, the chain, the tubes or what? Maybe the leather saddles, ya think?