[James]

It's quite obvious what the shopping remark had to do with:

You see, dead Americans are a cheap source of labor. After all, what do they need to get paid for? So in the afterlife, they make roughly 75% of the goods that France has in their commerce. The other 25% is made in France, imported from China, or brought back from trips to the center of the Earth.

So these products are then flown in by angels and sold in France.... But not anymore. So when all those Frenchies go shopping, and see most of the shelves barren from the American dead people refusing to make anything for them, they will remember all the dead American soldiers who fought and died for them.