I talked to them and they were pretty nice. Tried to sell me a newspaper though! But I expected them to do that.
Trotskyists support Lenin but opposed the USSR. They also deny the existence of AES states. They oppose China, Vietnam, etc. They also oppose labor unions.
Sectarian lies. The reason sectarian MLs hate and lie about Trotskyism is because if they didn't they would have to confront the fact that every desperate grasp for power by the moderate bureaucracy they refer to as "Marxism" involved the massacre of other communists.