Go ahead and fork, I doubt you will gain much market cap traction without Vitalik.
Although I disagree with Vitalik in regards to the fork, I do appreciate that he takes the long term view with the best interests of Ethereum and can give two shits for the short term price of ETH. As a miner, I'm losing too on Bitmain but it is what it is.
Vitalik can't have a 'long term view' at all he has not enough long history to have such a vision, he doesn't think out of the box, forget about him and other celebrities, it is not a show for the god sake!
Ethereum will be destroyed after migrating to PoS, be sure, no PoS based blockchain can survive unlimited number of versions of 'nothing at stake' and 'long range' attacks, imo.
The foolish 'slasher' proposal or the blocked deposit requirement proposed by this kid just make me laugh but even they have managed to do some magic and find a way to get a stable ecosystem with their Casper, it won't be Ethereum, it shouldn't be Ethereum, it is not fair, it is a 100% violation of the contract, the white paper.
Vitalik and his band are just pop stars, the irresponsible types. They say: "let Bitmain take over the real, legitimate Ethereum, we will run away by migrating to Casper some day"... excuse me? We have paid you folks to protect the network from such attacks and you are just bullshitting on us?
Ethereum Classic was a fork that happened in a rush and it is working and I know guys who do believe in it far more than Eth and its idol. I'll do a way better job than etc folks, you'll see