Well because of the price of bitcoins cash ( BCH ) is increasing will replace the bitcoins BTC, BCH's price is increasing it is just speculation from the traders and investors who takes short profit of this condition bitcoin's hard fork, we know bitcoins cash is very very new even BCH doesn't has the developer of team, i did not saw on their website. Bitcoins will be survive because right now BCH's price started decreasing.

For now BCH still has the highest exchange rate among altcoin available in cryptocurrency but still below BTC. But I am not too sure of this progress BCH price seems to be able to survive in a moment . even i think ETH much better have the potential to Able to compete with bitcoin.

So many came in and some many go out. What I mean is there were so many competitors to bitcoin before but they ended up in the list of long altcoins and some of them literally disappeared. With the hard fork situation bitcoin already shown us its mega potential and now the fact can not be changed that bitcoin would be more valuable. The value will come from its newly updated fan base after the hard fork. Bitcoin had been in the news while month so people now no more about it and its potential.

So true but this price is only just a hype and soon many will dump this coin and die later on.
Bitcoin stabilizes itself in the market and nothing can beat it and bitcoin has a long way to go than any coin.

Bitcoin will be here for at least a hundred years. Mark my words. 

No matter how many forks we have the legacy BTC will still be the first mover and has all the developers and media attention on it. Bitcoin is here to stay.

I think because bitcoin rate has not fallen, that means serious players do not expect the end of BTC. It seems that BTC and BCH and all other altcoins will increase.

All depends on Trader and Miner that determines where the bitcoin rate goes

I think Bitcoin Cash can replace top 1 of Bitcoin in short time is possible, because behind of Bitcoin Cash is many financier from China and they can make a surprise anytime as Antshares or Litecoin are altcoin they holding many more.

First of all you need to know that thr coin BCC( BCH) is totally different from the network of the Bitcoin network directly because most of the people are using the Bitcoin for the trading and also with altcoins trading at exchange .
But here in the current time people in this field have a option of another new coin that is BCC coin as an altcoin which is still yet like the tocken because no official wallets are available to use  and also system network are not much responsive .
So here you need to wait this whole month until the BCC get fully protected by the wallet and chain lock .
And that will surely results into the increase innthe value of BCC but here some new changes of change in the size of the block are results into low fee and fast transaction ( same.like bch coin ) .
So after this fork chances are more for thr use Bitcoin for small small transaction and increase the use more and more but still beside of the btc we have bch coin as a option which would also be your BTC like coin ( operating at the same private key currently ) .

I dumped my free BCC yesterday on Kraken as I don't think it will go any higher. If everyone is selling this new altcoin, how can price develop? It can only go down the drain.

I guess the BCC doesn't affect bitcoin and I am confident Bitcoin will still remain a top crypto currency, It survive for so many years and it will lasts for more years as long as it's value will continue to appreciate and that many people will still use it. Bitcoin survival will depend on the demand of users, the more users it have, the more chance that the value will increase, imagine there is a limit amount of bitcoin circulating the market so when the demand cannot penetrate the supply the value will have to increase.