If enough people are not on board, the majority can always fork and have their own chain. The best implementation then wins in the long run. That is the beauty

If enough people are not on board, the majority can always fork and have their own chain. The best implementation then wins in the long run. That is the beauty of blockchains, imho. It happened once with ETH vs ETC. BTC has been subjected to numerous shit-forks. Real valuable chain has persisted in all the cases.