The two worst ideas in all of humanity..... Islam & Marxism.
True. But these are just the most obvious systems of socio-political control. There are more prevalent evils that are far more subtle.
For example: "Diversity is our strength" is a carefully crafted lie. Designed poison the Juggernaut of American unity and trick the masses into willingly participating in a divide and conquer strategy. It's easy to win when your opponent goes along with your plans.
Never a ruler reigned where a usurper was not present! And since our Government operates at the consent of the Governed, it is the people who are the targets of the usurper.
I also dislike relativism, passive nihilism, post-modernism, facism, and mixing chocolate with fruit.