More and more Americans are opting out of Earth Day in favor of a holiday that offers a chance to fight back against Marxism and political correctness. The holiday, which is called “Holly Maddux Day,” is named after the young woman murdered by Ira Einhorn, a 1960s antiwar activist. Einhorn, who was a friend of Jerry Rubin and Abby Hoffman, is regarded by many as the founder of Earth Day. Einhorn emceed the first Earth Day celebration in Philadelphia in April 1970, at which Sen. Edmund Muskie gave the highlight address. Einhorn, an advocate of free love and drug use,...