Note 1502 — AN ESSAY ON MAN, IN FOUR EPISTLES (continued 3)
Reading edition
"To find an enemy of all mankind," signifies to find some one who is an enemy of all mankind, whereas Pope means to say that heroes desire to find all mankind their enemies. He exaggerated the "strangeness" of the conqueror's "purpose." The making enemies is incidental to the purpose, but is not itself the end.