I am wondering why everybody wants a service provider and nobody seems to care about an open solution. If you choose an provider you are always bound to its fat

I am wondering why everybody wants a service provider and nobody seems to care about an open solution. If you choose an provider you are always bound to its fate. We have 20+ global messaging networks which do not cooperate/communicate with each other. I am using XMPP and it works as good as any other messaging app (fast end-2-end encryption included). And since it is an _federated_ protocol I am not bound to any provider. There is just one major problem: There seems to be a lack of client developers, because most clients are simply not up-to-date. I am using 'conversations' as an android client, which is quite good, but the desktop clients seem to lack any development momentum.