The free-market can solve a vast majority of problems better than central planning can, and given a proper chance to prove it, likely all problems. But a free-market of software nodes making the decision is the ideal model for governing aspects like blocksize; letting node operators choose freely just invites people with bad incentives to abuse the freedom. People like Peter R try to gently imply they want the former, when in truth, they're proposing the latter.
You are saying that people should not have this freedom because you think they will abuse it?
When you allow people to have freedom, you also need to allow them to make bad choices. You cant have it both ways, it is the consequence of freedom. I personally think it is worth it, since it brings about more good then harm overall in the greater society and civilization over the long term.
I don't "think" this, it's an observable fact.