Those who thought that there could never be a global government because even countries cannot unite and OPEC could not cooperate have now found out that the 1% can easily create a global police state by paying off the leaders of every country.
A global government is sold as a world with free trade, open borders, one currency, and peace, but actually a global government means that countries become zones with borders, there is no freedom, and you are not allowed to escape high taxes or draconian decrees.