You don't. It would be as pointless as appeasing some tinpot dictator, his interests do not overlap with yours.

The only way is to convince regulators to force carriers to accept whatever their customers use. Fuel stations don't lock, neither do water suppliers, electricity suppliers etc so why should phone connection suppliers be any different?

Connections are a commodity, they should be as cheap as they could possibly be, there shouldn't be any value added stuff forced on people.