The social consensus, in this age of the world works in such a way that one of the few (but not sole) ways in which you can convince people to go along with you

The social consensus, in this age of the world works in such a way that one of the few (but not sole) ways in which you can convince people to go along with your attack/fork is to put forward technical (including economic) arguments about why the rules should be done differently and ask those who agree with you to lend you their hashing power.