The destination of the packet where it is sent, just as a toy sent from the U.S. to a customer in the U.K. is sent to the U.K. rather than the local Fedex store.

not at all, 4chan only sends packets to their isp!

I don't think this holds up, at least not with the "kids toys" example.

Aliexpress only sends the toys to the Fedx or whatever shipping partners UK uses.