Unpopular opinion:
Not every coin is a shitcoin, not every cryptocurrency is a security.
Bitcoin isn’t the only decentralized p2p transaction system that will win.
Don’t be fooled, and don’t trust me, verify by yourself.
Discussion
Certainly, there are obvious scams and coins that were developed with a certain idea in mind (e.g. Monero). All of them get devalued relative to bitcoin over time, but some can be useful in certain occasions (anonymous donations).
When i came to Bitcoin it wasn’t to win money when the price goes up, it was to have a surveying tool agains the banks and state and im upset when price goes up because i like the technology and i want to buy as much as I can, but that’s my opinion, and I can be wrong.
So you are basically just talking about $LTC and $XMR
The proof of work networks without premines will certainly last quite some time.