The idea is fewer LAYERS of middle men - not less middle men competing for your business.

I.e. get rid of the realtors - don’t get rid of the house photographers, listings sites, and staging companies. Remove a layer between you and a sale, don’t reduce the number of photographers competing to take photos of your home for sale.

Well, you should be free to bypass layers, when you want to. But sometimes they can be useful, and people should be allowed to add layers.

Eg a concierge is purely a middle man between you and various restaurants and venues. Many people find them useful.

If the concierge is outsourcing some of the calls and research she has to make to some assistant in the Philippines, that should be fair game.

I do not disagree. You are free to use a realtor, and/or Facebook, and/or whatever.