This self selection of the most extreme left wing ideas in order to strengthen Shapiro’s political and philosophical views is a bit too self serving. While it might be true that those voices exist, that does not mean there is not a wide range of approaches in the left to tackle societal issues, which have not yet been given any weight here. You can effectively argue that Malcolm X wanted a full elimination of the current system, but many readers would implicitly link that with the broader Democrat party which for the most part would not agree with that approach. There is a separate inherent problem in a two party system that allows political opponents of both to point the finger at their most extreme members as evidence of their dangers towards America, but that is a separate thought exercise