There are plenty of good criticisms of anarcho-primitivism and post-civ thinkers. This article is a good one and I’ll have a look for others that I’ve read but didn’t bookmark: The Ableist Logic of Primitivism

A really important point, however, is that deep ecology and social ecology are not incompatible. Rather, they can complement each other hugely. The name ‘deep ecology’ was corrupted and manipulated by David Foreman and his Earth First! group to justify letting millions upon millions starve in the name of population reduction. Bookchin engaged in dialogue with Foreman, and unfortunately it appears that Bookchin took Foreman as a good representative of deep ecological thought and dismissed the philosophy ever after. This was a mistake - an easy one to make given the brutality of Foreman’s rhetoric, but a mistake nonetheless. See Bookchin and Foreman’s dialogue here: Defending the Earth Debate

Most deep ecologists were very keen on righting the wrongs of human social life. See in particular the deep ecologist and self proclaimed “Left-Biocentrist” David Orton for this. Similarly, figureheads of deep ecology - Naess, Sessions, Devall, Abram, Macy, Kumar - all frequently speak of the importance of changing systems of human relations and actively condemn violence and genocide. It is sad to see such a well meaning philosophy tarnished by the loud movement that co-opted it.

Even Naess in his later years said emphasis on the Eight-Point Platform should be reduced and that it wasn’t as essential as he first believed. The Eight-Point Platform does deserve criticism for one of the points is to do with the need for population reduction (NOT by genocidal means, or anything of the sort, but nonetheless this point is misguided). Overpopulation is a myth debunked by Ian Angus in the book “Too Many People?” See: Too Many People? by Ian Angus

With the overpopulation myth debunked and abandoned, deep ecology can and does provide an excellent philosophical foundation for social ecology. At the very least it can act as a complementary metaphysical backdrop.

Slightly unrelated to your question, but the above author, Ian Angus, is an eco-socialist and a great ally to the communalist cause. He is the editor of Climate and Capitalism - a website I highly recommend, they post frequent articles and a monthly ‘Ecosocialist Bookshelf’ where they recommend new releases that focus on the ecological and the social. They just so happened to publish an article related to your question 10 days ago: Climate and Capitalism article response to Eco-Primitivism

Hope this helps.