i don't think he can kick bitcoin price and then replace it with bitcoin cash because bitcoin itself have bigger community and many people is supporting bitcoin from every where. i see the bitcoin price is come back and trying to reach the higher price than the last high price and we will see the highest price from bitcoin in this year and i think this will makes people to come into bitcoin world. i think the crash is normal because some of people is getting panic because of the segwit2x yesterday and many people is making a bad news that affect bitcoin price and suddenly the price is dropped until $59xx (the last time i saw the bottom price). but i am not too worried of this because the fact, bitcoin price is back to increase and now it reach more than $7xxx.