Current nascent criticism of anarchy is probably that it looks at the conditions where maximum sane and good things happen and then imagines these conditions are implementable from the outset as praxis rather than themselves the outcome of complex factors beyond human control.
Everyone will hate me for it but I think the best thing that can be done atm is to continue riding industrial society until it produces technology that can radically enhance human intelligence and radically decouple human well-being from a vast underclass of powerless labor.