Many of the modern anticapitalists and marxists in the western world are aging out. Parenti is currently suffering from Dementia and Wolff is in his eighties and can't go on forever. Who comes next?
Essentially do you see any big modern marxist public figures coming in as the "old guard" ages out? Who?
I agree they have some good writers but all three publish so much anti-communist literature that it can be hard to sift the good from the bad. And it takes time reading the founding thinkers just to know what to look out for in left anti-communist literature.
Luckily, their good stuff is top notch, so I can't complain too much. Three quite big, leftist publishers in this world isn't to be sniffed at, either!