Well you're criticizing shitty thinkers rightfully w.r.t to co-ops; they're great, they aren't top-down. But you're committing the same error. Co-ops are completely compatible with capitalism so holding them up as contrast doesn't make much sense. Show me non-authoritarian Marxism at the scale Marx so confidently predicted.
Marx simply had a flawed understanding of economics and it's time we moved on. We have the data supporting the decision to do so. Usually when a theory makes completely incorrect predictions repeatedly, we abandon it. But apparently marxists know better than everyone. Do they have some secret data set?
Something exists in capitalism so therefore it can't be socialism? And im not going to get into another circular reasoning of "It didn't exist in that form before therefore it is impossible now." At no point have you pointed out anything Marx supported that is a problem other than a generalized brush of everything.
90% of Marxist work is a study of capitalism, much of which we still hold true today, so to me you look like everyone else that blindly dismisses what he said without learning what he even did or said.