One must understand that we aren't talking about huge factories where they build the whole plane from the ground up.
The 777 is built in subunits (about 50,000 SUBUNITS) that (currently) are built in a variety of countries.
Here, for example, is a chart showing the countries that build subunits for the 787.
Wholly crap why so much outsourcing? Is the Euro community holding Boeing hostage? “Better let us in on the action, otherwise good luck selling your planes to Euro Airlines”??
I hate GE but certainly they could be building engines vs what I assume is Rolls Royce?