Bitcoin Cash (BCH) is a new altcoin sharing with Bitcoin its blockchain ledger only up to Aug 1 12:20. So Bitcoiners dont need to be worry about this altcoin, it has separate blockchain from Bitcoin already.
then you are misinformed my friend!
there has been lots of attacks against bitcoin in the past few months from August 1 12:20 against bitcoin. from social media childish attacks to serious damage-causing attacks when they pumped it.
i just explained
in this comment how the difficulty worked with BCH, that means they took bitcoin's hashrate and when you do that bitcoin blocks are found with a longer delay than normal. since the hashrate was big the delay was also big.
this delay meant transactions were stuck, a big backlog was created and fees began to rise ridiculously high. something that has not yet been fixed because were still recovering from that attack.
if bitcoin cash never existed or used a different algo like bitcoin gold, this problem would have never happened for bitcoin.