Is the profit incentive really strong enough to keep core extremists from turning their hashpower to BCH just long enough to destroy the chain and crash the price?
It's unknown how much of the short term profit hashpower behind BTC is long term behind BCH. Trying to 51% BCH is dangerous not only for BCH, but for BTC too. It can easily backfire
I doubt there is enough. If anything, there are BTC miners mining BCH to get more BTC that could be used as additional power against BCH in a 51% attack.
