So you equate "globalism" with "empire building" and furthermore you think that will pose no threats to collective sovereignty and individual freedoms of people and nations throughout the world? Wtf.
The empires you refer to became empires by restricting collective sovereignty and individual freedoms. People got those things back by rejecting/fighting off the globalizing efforts of those empires or simply had to wait for them to crash.
The current push for globalism is one where nation states become increasingly dependent, less free, and less able to make decisions for themselves. The end result is a one world government and complete and total centralized planning. That's what Brexit was about. That is why the powers that be are fighting so hard to keep borders open in so many western countries. And that is why they are unloading on Trump with everything they've got.
It is the nation state that preserves freedom. The more centeralized and far reaching a government becomes the better suited they are to dictate and dominate others ie less sovereignty and less freedom.
But ya know...none of that is at play here. No legitimate concerns at all. It's just a bunch of people who are afraid of traveling and working with others.
Those people don't exist Pan