No, it seems that many believe this market can keep going without bitcoin, maybe at some point in the future that statement is going to be true but right now that is unimaginable, bitcoin is everything for this market if it were to disappear for some reason you can be sure that all coins will disappear with it and it is not really complicated to understand why, if bitcoin crashed and disappeared I will most likely never invest in any cryptocurrency ever again because if bitcoin could disappear then that means that no coin is safe.
It is not acceptable in present time and similar is the case for future also. You talked about if condition in future, see Bitcoin is the beauty and strength of crypto market and as its value is increasing day by day its strength is also increasing. How can you imagine that such a powerful coin which will gain more attraction in future also can be over?
You did not really read my post in the right way, I never said that bitcoin is going to disappear, I'm just saying that we do not know what it is going to happen in the future and as such no matter how much we trust in it the possibility is going to be there, but right now that is unimaginable because bitcoin not only has the majority of the market cap it also has the majority of the support of the people that are invested in this market and that is not going to change anytime soon.