Karl Marx would've turned 200 on May 5. What better way to commemorate the occasion than to recall the fact Karl Marx's ideas have led to the deaths of 100 million people, extreme poverty, immense suffering, and relentless oppression -- and you can't even say he's a nice guy. 

Marx treated people cruelly, was two-faced, and used racial slurs. In a 1862 letter, Marx described an opponent as a "Jewish Nigger". He was also a slob. "Washing, grooming and changing his linen are things he does rarely, and he is often drunk," a Prussian police spy reported.

Marx had an affair with his life-long family maid Helen Demuth, who was, ironically, never paid for her backbreaking labour. The affair resulted in a child that Marx refused to acknowledge and was fostered out. When the child came to visit he was forbidden from using the front door and obliged to only see his mother in the kitchen.