There is no question in my mind that if Bitcoin die and altcoins will die. Bitcoin is the most popular of all and it is the face of block-chain and crypto world.
the good news is that Bitcoins has been killed more than 100000000 times and it is still here and it is not going anywhere.
Bitcoin is a very popular Crypto Coin nowadays. It has a expensive value of prices and i don't see any reason for it to get died soon. But we cant predict guys