Because she isn’t a communist but a middle-class “leftist”, which necessarily has to contend with 1) the transnationality of capital combined with 2) the middle-class constantly diminishing through expropriation. The middle-class is not a class they can fight for itself, hodgepodge of interests it is, so it entreats the proletariat with policies to artificially prop it up.

I don’t entirely remember her weird article on open borders/closed borders - I think she suggested closing them + some weird government ID system - but those traits, for lack of a better word, cause a “vulnerability” to nationalism, we’ll say. The historical base of fascism was a shrinking middle-class searching for a big-boug leader to prevent its total collapse. There’s also that the labor movement seems currently too weak to actually commit to strategies towards immigrants like the IWMA did with the Irish & British (putting them in contact with each other across state lines, greater association), so nationalism is generally an insane subject across the political spectrum now, to say nothing of how the internet melts brains in to irony goo.