You can create Bitcoin2 and say that this is the same thing as Bitcoin, but will people be buying your Bitcoin2 at $7,000+ per coin? I seriously doubt that.
No they won't - and that is also why the realization will sink in that there is also no need to buy Bitcoin at those levels at all, and the party will come to an end
We've seen similar predictions many times here on this forum: "The end of Bitcoin", "The bulb will burst soon", "Will Bitcoin last long?" etc, etc.
Why do you think there is no need to buy Bitcoin at today's price when demand is only rising and hence the price of BTC in the future will be most likely higher than it is now? No one knows the "real value" of anything, it's the demand is what the key factor for the price we pay for things.