Even with 51% of total hash power of the network BU miners will have to produce blocks larger than 1MB and the majority of nodes will have to validate those blocks for up to 2 weeks I imagine to successfully perform a hard fork but they won't do it why? answer is really simple, exchanges won't trade and list that second coin even if it has the majority of hash power behind it unless they show BU the green light there will be no hard fork.
This is quite sad, this only show who is the boss LOL. So it is not the miner, nor the developers but indeed the exchanges! The consensus of the miners weighs nothing if the exchanges says otherwise. And, the way you said it, all the effort of BU will be in vain because at the end it is the exchanges who will decide what is good for Bitcoin. Funny isn't it? This made me think what are BU fighting for?
