George Soros should be #1.
Tied with pickles.
A rogues gallery of US bad men and women would be especially interesting. That list would be 100% unique between Marxists and Patriots. Top of the list for Marxists: Lincoln. Top of the list for Patriots: Obama.
I would put Soros number 1 also. Largely because he is stealth evil. One can see Pol Pot coming, but Soros is a snake in the grass.
Selected List of Those Who Used Evil for Good (which will be much understood by readers).
1. Moses slew 3,000 of his followers for debauchery in order to found the nation of Israel
2. Harry Truman dropped two A-bombs on the Japanese cities of Nagasaki and Hiroshima costing 120,000 lives to end the Pacific War, thus saving countless more lives lost on both sides of war
3. Winston Churchill who betrayed his people on April 8, 1941 by not informing them that he knew when the 230 Nazi bombers were going to blitz the City of Coventry during WWII. Over three nights the Nazis killed 451 people and wounded 700. To inform the city would have been to tip the Germans that the British had broken their military codes.
4. Ronald Reagan who invoked plausible deniability but lied that he knew nothing about trading drugs to Iran to release U.S. hostages and selling guns to the Contras in Nicaragua to fight the Communist Sandinistas. The Sandinista government killed 30,000 and made 500,000 homeless. The Iranian Revolution of Rudollah Khomeini killed from 2,000 to 60,000 in taking over the country and took 60 U.S. hostages. The use of the nomadic religion of Islam to cover the actions of organized crime networks who operate as the Muslim Brotherhood, Hamas, Hezbollah, etc. is ongoing.
5. The Roman Emperor Caligula who was portrayed by paid propagandists of the Roman Deep State (Suetonius, Seneca, Philo Josephus) as an incestuous mad man who appointed his horse as consul. But in actuality he feigned craziness, reinstated free speech and elections, made the Plebians prosper, reduced taxes, forbade senatorial ostentatiousness, took action against those aristocrats who absconded with road improvement funds, built two new aqueducts, wanted to move the Roman Senate to Alexandria but took revenge on those who killed his mother and brother and even those who helped him secure the throne. The historian Suetonius says 160,000 animals were sacrificed during Caligulas inauguration. He conquered Mauretania and launched a campaign to take Brittania. Liberal novels and Hollywood movies have depicted Caligula as a monster.
6. Arguably, Lincoln fought the Civil War, costing 50,000 lives, to abolish the slave economy inherited from the Roman Empire to be replaced with greedy capitalism.
7. Niccolo Machiavelli who wrote a book, The Prince, on how to use evil for good and believed that in emergencies rulers must often use evil and violence in wars, to fight corruption and repel waves of Barbarian immigration; but in normal situations advocated that Christian morality should prevail. He organized a citizen army to defend the city-state of Florence instead of hiring mercenaries. Machiavelli wrote a Christian sermon On Penitence.
I agree in that I would certainly put him on the list.
But I will leave it to the Lord to make these final judgments. Being famous and being evil are not synonymous.
And for those who like to portray JFK as some sort of functional conservative:
George Soros became an American citizen during his administration - when the USA still had a moratorium on immigration.
JFK also created public unions by EO - thus enabling and empowering the Deep State to become what it is today: virtually invulnerable to eradication.
That drug-and-sex-soaked adulterer and reprobate - the exemplar for Bill Clinton - was no kind of conservative.
If the list was about the past 50 years, I'd agree, and add Teddy Kennedy and John Kerry.