Left-unity
Left-unity is a slogan which calls for the unification of various left-wing political movements. Left-unity diverges in its aims, ranging from calls for limited, tactical unity between leftists in practical activities to unprincipled and opportunist stances which deny the need for splits with revisionist tendencies (e.g. between Leninism and Trotskyism, Leninism and Kautskyism, etc.).
Forms
Anti-revisionist unity
Anti-revisionist unity is an eclectic, revisionist idea mostly prevalent among many moderate Hoxhaists, so called "anti-revisionist" Marxist-Leninists who either fail to recognize Maoism as a universal higher stage of Marxism or in the case of some of the more Hoxha leaning of them, reject Mao's contributions all together. This position is primarily an online phenomenon as it is not reflected by any existing writer, communist party, or anything like that. It is a fully eclectic idea based on a fundamental misunderstanding of revisionism, line struggle and anti-revisionism. It only serves to avoid line struggle and principled discussion, in favor of unprincipled unity.