My hated conspiracy, huh? What did Winston Churchill say about this "conspiracy theory"-
"This movement among the Jews is not new. From the days of Spartacus-Weishaupt to those of Karl Marx, and down to Trotsky (Russia), Bela Kun (Hungary), Rosa Luxembourg (Germany), and Emma Goldman (United States)... this worldwide conspiracy for the overthrow of civilisation and for the reconstitution of society on the basis of arrested development, of envious malevolence, and impossible equality, has been steadily growing. It has been the mainspring of every subversive movement during the 19th century; and now at last this band of extraordinary personalities from the underworld of the great cities of Europe and America have gripped the Russian people by the hair of their heads and have become practically the undisputed masters of that enormous empire." Writing on 'Zionism versus Bolshevism' in the Illustrated Sunday Herald, February 1920
Churchill must have been one of those tin-foil hat wearing anti-Semites that lived in his mothers basement.
Your view of conspiracies is childish. There is no single conspiracy. There are competing conspiracies such as the Transnational Corporatist conspiracy (managed neoliberalism), communism, Sunni Islamists, Shia Islamists. These groups will work with each other towards common short term ends. The Nazis were their own conspiracy.