Satire is focused bitterness.
Leo Calvin Rosten (1964). “The Many Worlds of L*e*o R*o*s*t*e*n: Stories, Humor, Social Commentary, Travelogues, Satire, Memoirs, Profiles, and Sundry Entertainments Never Before Published; with a Special Introd., Background Notes, Revelations and Confessions, All Hand-written and Themselves Worth the Price of Admission”