...
Yes I just want to highlight one particular thing you wrote:
Besides, this is the free market in action. It's up to users to start using the new wallet, and we can collectively choose to ignore that transaction. There is nothing more democratic and decentralised than this. What in the hell are you complaining about?
Doing something like this voluntarily and choosing as a group to make a change is 100% a 'free market' action and is precisely the point of having the freedom to make such changes.
Bitcoin is strong because the majority controls its destiny. If someone came along right now with a new development team that was better and faster as a group Bitcoin could decide to reject our current clients and switch over in a heartbeat. That won't happen though, but the idea is what drives Bitcoin.