Then all that belongs to bitcoin will be on that altcoin together with the authority to all crypto in the market.
I think that nothing will be changed. Someone took first place bitcoin took second and go on. People still will start investing into crypto market in Bitcoin will be on the second place.
Yeah that is the mark of history. Nothing has been eternal. Every charming have to go under crucial process and methods and then sometimes it exist and sometime is just cant made. This disturbance must create a legend within you to take the lead and take charge to stabilize such drowning thing. Only then success can be at your door step. Try not to overcome it.