bitcoin isn't run by a majority. that's utter nonsense. anything short of 90% agreement among users, nodes, exchanges, merchants and developers would likely just not happen at all. at most it would cause a hard fork, meaning another shitcoin to whither and die. bitcoin is very decentralized. there is no entity with unilateral power. not even close. it is really a beautiful system. i highly recommend you learn more about how nakamoto consensus works. andreas antonopoulos has some great explanatory videos on youtube on that subject and more.