Again, not a blockchain fan. But I think it's naive to ignore the upside. I highly doubt we're doing to lose the bittorrent blockchain, even if the tech goes defunct & inactive. This is the use case the crypto-currency ponzi scheme detracted from, is the forgotten value proposition.

I dont see real incentives for people to replicate things like IPFS. Deep time storage seems socially as unaddressed now as when IPFS was new & shiny in 2015.

There's a technical possibility but in actual use there's awful decentralization: incredibly spotty replication done via very narrow curatorship or some short/medium term caching. The tech making it technically possible is insufficient for the social condition of making people want to back your bytes up. TBH IPFS- in practice- seems about like a secure/encrypted higher tech sneakernet.

The actual possibility of enduring seems flagrantly absent from any alternative I & seemingly you can think of.