These trading blocs make every country within them relevant on the world stage.
This is true of EU countries, with Germany, France, Italy, Spain, Holland being the leading lights.
The US-Mexico-Canada deal means that they are all relevant on the world stage.
The Eurasian Economic Union is an economic union of states located in Eastern Europe, Western Asia, and Central Asia including Russia.
And the biggest bloc of the lot is the newly formed Asia-Pacific Regional Comprehensive Economic Partnership, which includes China, South Korea, Japan, Australia and New Zealand and ten other SE Asian countries.
https://www.bbc.co.uk/news/world-asia-54949260
Plenty more trading blocs around the world.
As a result, all these countries are punching above theirs weights by working in partnership instead of competition with a common goal.
The UK is bucking the trend and has decided to go it alone, hoping for a favorable trade deal from...someone. We have lost a hell of a lot of influence as a result.