EEC (later only EC) ceased to exist in 2009. Good morning  :D

Most states in the EU are successful, more or less. Which cannot be said about any of EAEC states. Projection of brute political power (in case of Russia) cannot be used as a measure of success. Neither can patting each other's back "because we don't underestimate each other" change the reality.

Do you think Uzbekistan and Macedonia are roughly at the same level?

The losers remain the losers the winners remain winners in or out of union. Macedonia is not different from Uzbekistan (other that Uzbekistan has more resources),  my remark was about your attitude to look down towards such nations. What makes you to act in such a way?