I keep seeing this argument, and we all know it's bs. 20 years ago there were many email providers, people simply picked one, or hired someone to set it up and run it for them.
The same principles should and could apply for decentralized one; pick conversations.im for XMPP, pick matrix.org for Matrix, pick Mastodon.social for fediverse - or something smaller. Or ask someone to do it for you. Or run your own.
It was, actually, when gtalk, facebook, and whatsapp (thought I'm not completely sure about this, just have a reasonable suspicion) was using it in the background.
The same principles should and could apply for decentralized one; pick conversations.im for XMPP, pick matrix.org for Matrix, pick Mastodon.social for fediverse - or something smaller. Or ask someone to do it for you. Or run your own.