In a single word, "fringe." Marxism-Leninism isn't just the most historically relevant branch of Marxism, it's also the most important in the modern era. It isn't a "false equivalency," I never made the claim that all Marxists are Marxist-Leninists, just that much of peoples critiques of Marxism-Leninism are more accurately critiques of Marxism itself, Lenin's work not being relevant in that particular critique.