Why do you presume you have the consensus on your side? Do you think a majority of the users/miners/pools will suddenly adopt your, or a like minded model? You come across with great egotism and hubris, like you have all the answers. As if no-one has ever dared deliberate your concerns.
It seems you too jumped into the middle of the discussion? I am not proposing anything, or trying to convince any miners or users about anything, I am just pointing out that the common claim "a mining cartel with 51% power cannot change the protocol" is based on simplistic and optimistic assumptions about what the cartel may want to achieve, how that "attack" would be carried out, and how the community would react to it.
Claim:
Even though the front door does not lock, burglars will not enter the store at night through it.
Proof:
The door opens out, not in. if a burglar tried to walk through the door, the door would stay shut and he would crash into it. Since the door is harder than his bones, he would hurt himself badly. His friends do not want him to get hurt, so they would call the cops to come and arrest him before he gets to the door. QED.
To me, the standard argument used to dismiss the "51% takeover risk" sounds about as logical and convincing as the above, sorry.