About protectionism

The US should join the Commonwealth of Nations. Or, is the U.K. going to become the 51st state of the "Divided" States of America? Both options are not impossible. Are we going to see the collapse of "globalism" imposed by the two Anglo-Saxon empires in history on economically-less-"developed" countries of the world?

I wonder how the ex-empires can become "great" again without the benefits attributable to the process of globalization of economy that they championed.

I am not against "moderate protectionism" of any country for the purpose of protecting their infant industries and the workers who belong to them, although this means the sacrifice of the rights of consumers in the country.