Oh yes completely agree ! there are solutions for everything. It is a matter of being clear about where we want to go, state the intention, and then create with full trust that together we will get there 
Also fully agreeing on the step by step approach : let’s start the ball rolling without waiting for everything to be perfect and we will improve with time. What we need now is to have a real world, production application, make it scale to many users and then iterate. We know this : the important matter is to get traction and wide adoption first.
I have the intention to build this decentralized social network we are talking about here, and do it fast, and do it together, so everyone is welcome to join to co-create ! I am 100% dedicated to this.
For those interested, please check the event I am proposing to host : Creation of Solid applications with low-code development platform Generative Objects , I plan to demonstrate how we can build very fast this social network with Generative Objects low-code technology. Please comment on the post for the event to say what is your time-zone if you are interested to participate