It's easy to blame the UK government for being incompetent nitwits for writing the horrendous Online Safety Act (https://www.theregister.com/2025/01/14/online_safety_act/) that strengthens monopolies with the resources to implement it and weakens small communities without those same resources.
But this is all according to plan for Meta/Facebook et al. It's regulatory capture in action. It's way cheaper to kill your competition with regulation than to buy it, especially when it's decentralized.