Dictatorship, to Marxists, refers to the ruling class. After Feudalism, the class character is either proletarian, capitalist/bourgeosie, or Napoleonic. In this case, all liberal democracies are dictatorships. If it's a state, it requires dictatorship by a class or class relationship. If the dictatorship was deemed unncessary, or the contradiction between classes fell, then no states would be necessary. As far as your point on Taiwan, almost all countries recognized by the UN observe One-China policy as required by formal relationships with the People's Republic of China (PRC), which has territorial claims to Hong Kong, Macao, and Taiwan, even though they have their own distinct governments. To recognize formal relations with Taiwan is to also recognize China, only in that case meaning the Republic of China (ROC) rather than the PRC. As for NATO? There are plenty of videos to watch if you are curious, but NATO itself is tied to its history with the Operation Gladio, and its purpose was to be an alliance against the USSR. Now that the USSR is long gone, any use of NATO is extremely questionable, as if arming and funding fascists wasn't bad enough.