I don't think bitcoin will die, but also I am not 100% sure it is the future. I think it will be used for large payments, it's a slow, heavy online gold. I think something else will be used for normal payments unless lightening is somehow amazing.
I agree, Bitcoin will become the gold of the cryptocurrency market but it will never become a means of payment. Bitcoin is too slow and transaction fees are too high, the future needs a reputable, stable and fast currency.
You are right, BTC is not used for the payment system globally and I feel that's the reason for downfall happening everytime, there is no doubt that the future of this coin will last long for more years but the transactions should happen everytime.