There is nothing preventing anyone from using these protocols, if US lefties feel excluded because other opinions exist on the same front-end, they can make their own frontend and ban aynone they want, the good thing is that the protol itself isn't censorious.
I have a problem with federated platforms where you just get scalled down youtubes where every local sheriff gets to terrorize the people under his domain with his whims and if youtube's are driven by ad sales these are perhaps even worse because they're just ego driven.
Federative approach is terrible, it combines the downsides of decentralized and centralized solutions, it's far from neturality or increasing inclusion or escaping censorship.
Thank you for reading my blog.