
He made a case against elitist/purist versions of leftism, so you accusing him of excluding people that aren’t ideologically pure enough indicates that you massively missed the point.
Similar with “left-bashing”: he’s a leftist, why would he? He has views about what makes us unable to be attractive to a wider audience, that’s constructive criticism.
For anyone who is interested in knowing if she ever ended up shooting a fascist, here’s the relevant paragraph from Wikipedia: