People will lose interest on bitcoin if that would happen that bitcoin dies but I think it doesn't gonna happen because many people now investing in bitcoin and huge money involve on this and they don't want to lose it.
Bitcoin for me will be forever as long as their is technology and internet.

if in case the bitcoin really dies, I think that will replace and much hunted by people is ethereum or litecoin. but it's too far to say bitcoin is dead, it will never happen.

in addition to bitcoin, ethereum is a coin that many hunted by people. if bitcoin die, I guess people will hunt more ethereum. but the more unlikely is to say that bitcoin dies.

Maybe some lost interest because of the very low price of coins now. Its really make feelings down on waiting for price increase. It's like your hope is dying.This time of dumping price lnvestors are quiting also because they say that in a month have no income or profit is not good for them so they quit and look for another.,for them to have an income. They don't want a vacant profit. So they lost interest in bitcoin during dump period.

Others would probably take the opportunity to lead the digital currency and global crypto market.
It's just like in ecoology, with the elimination of the top predator, others with the same niche or role will take its place.
So maybe Litecoin or Etherium will replace it.
Crypto assets will not die down

for new investors they may think as you say. But if he is really a bitcoin love and know him for more than a year I think this will not deprive him of his interest to invest.
and for new investors I suggest should be better understood with unstable bitcoin prices.

So in investment, if we do not understand the product we choose then we easily panic when get the price drop, understand correctly will make us understand that there is great potential with bitcoin investment, and with patience then we will get big profit.

Bitcoin has been a great mark on to the people who invests neglecting other crytos, I guess without bitcoin, other cryptos wont be created too> so eventually, if bitcoin dies, it would leave a scar to those who invested and likes it, still, its posible some would never lose their interest on to the other cryptos.

It is impossible to think of cryptan without Bitcoin. All crypto are basically interrupted by Bitcoin.If Bitcoin dies then I will definitely be disappointed and stop altcoin investment.