When a currency goes through hyperinflation, that generally happens because the government goes crazy printing the currency and the trust that others have in accepting the currency goes down.

If crypto collapses, it will likely be because it just becomes computationally infeasible to work with. The problem with the blockchain is that every action on the blockchain requires the whole blockchain. As time goes on simply storing the blockchain will be something that's simply not reasonable.

An issue specifically with bitcoin is that as time goes on, transferring a single coin in a day, month, or year becomes computationally impossible. Bitcoin is quickly rushing to a point where holders of bitcoin will be incapable of trading it.

That, IMO, will be the collapse of crypto. If you can't move the currency, it doesn't matter how much others value it. It'll become a game of hot potato. with the last few holders getting more and more desperate to unload the potato for money.