People need to get this through their heads, XMPP is the only solution for their problems.
Strongly disagree and this sounds like dangerous FUD to me. For one, there's comparatively zero users across XMPP anyways, and it has a big problem with compatibility across different software packages. It also does nothing to help the problems stated in the video of massive droves of abusive content and server operators unknowingly hosting copies of it across the world. Then there's the privacy and GDPR minefields that come with any decentralized/federated service.