
Delegate
How about a simple prescriptive solution: Google puts a link top right - "Regional Shopping Collators" - which opens a page listing all the alternative shopping collators from a list specified by the EU (or your regional e-boss), in an order specified by the EU, which the EU can update daily. Also a setting which allows "shopping" to default to that page, or an additional "regional shopping-alt" button.
Hopefully, Google could save some money on lawyers/fines and invest that on more practical R&D, like AI/robotics for manufacturing.