Bitcoin will still be the best coin and have a vast market. So I'm not worried about bitcoin cash.
Bitcoin has its supporters and I am sure that many people use Bitcoin as their main currency in the digital world.
So Bitcoin cash is not an obstacle because Bitcoin has the power of hundreds of times better and has support that is thousands of times better than bitcoin cash.
That is absolutely right, bitcoin cash is not a treat for bitcoin or even other altcoin. Generaly people buy altcoin for their investment which meant that the safe point is bitcoin or fiat. Even the best altcoin (ETH) is only a tool for people who want to send their token, ETH will not survive without it's token. Bitcoin cash will not survive without investors who invest in it and hope that bitcoin cash price is rise in btc-bch pair, bitcoin is much more better than bitcoin cash.