I think your summary of what people actually want from decentralisation is pretty good, Justus.
 
I don't believe that any Bitcoin user actually cares about decentralization, because none of them I've asked can define that term.

+1 Insightful

It's been quite impressive to see so many Bitcoin users and developers saying, "Bitcoin is totally decentralised because it's open source and nobody is in charge...... oh nooooooo we didn't mean you could change those lines! If you want to change those lines then we must agree first!"

Believing simultaneously that:

1. Bitcoin is decentralised

2. Nobody should modify the code in certain ways without the agreement of me and my buddies

is just doublethink.