All of those "leaders" are subject to control and influence by the real world elite. The strongest are in the ruling dynasties of the Rothschilds, The Vatican, and the British Crown.
I agree with you, none of these leaders have any real power. The real controllers are behind the scenes pulling the strings and people like Trump is just a puppet. Whoever controls the banking system has the ultimate power.
Kim Jong is the definition of a dictator with nearly total and complete control of his nation. Putin and Xi Jinping are semi-dictators that operate largely under a ruse and have a heck of a lot of power in their own right. Trump doesnt nearly hold the same power as these other leaders but has powers of his own that arent completely controlled by the senate/big corporations.
Imo all terrible human beings. Sad.