Well it was also overwhelmingly founded by people who defeated aforementioned Nazis. The allie's fought to kill the idea, the soviets just killed the people and stolen the idea
The Soviets defeated the Nazis. The fascist western politicians, afraid of the spread of communism, merged and allied with what remained of the Nazis to fight the Soviets through NATO.
Several members of the EU are not even in NATO and staunchly neutral (Sweden and Finland were vehemently against joining NATO until the Russian invasion of Ukraine).
The United States has indeed installed puppet governments in many countries around the world in the past. But they have nothing to do with the Ukrainian elections.