I've read enough history to know what sharecropping looks like. Tell me how this is different than sharecropping. Why should I build something I don't control on Lord Zuckerberg's platform so I can play the startup lottery? We did this almost a decade ago. Facebook introduced their developer platform and people started giving up their freedoms. This isn't a conspiracy theory, this is something you can observe by yourself.
Facebook has already broadcasted loud and wide how they are going to screw you over. It's your choice.