Bitcoin transactions are also "irreversible" providing the fee paid is reasonable, but ultimately the clearing time for both networks is down to the likelihood of a 51% attack for which bitcoin is far more protected against due to the far larger amount of hash power. It's not comparable.
If I'm moving/storing $1 billion, do I care if the transaction costs $1 instead of $20? No - I care that I'm storing the money in the safest place to store value I can find.
If we look simply at network growth in economic terms, Bitcoin is only going to attract larger and larger sums of money. This halving epoch we now have institutional investors (ETFs) and once it has proven itself at that level, the next stage will be nations openly buying it.
So even if fees increase in fiat terms, so will the size of the transactions. Enough to take the market cap far, far beyond that of gold. Once bitcoin has grown to the point that its value has stabilised, there will be substantial demand for transacting in it directly and there will naturally be a lot more work invested into higher-level payment networks/solutions. Right now though, Gresham's law sees to it that most people are happier to hoard than spend and that's likely to be case until bitcoin is at least $10M/BTC
Bitcoin transactions are also "irreversible" providing the fee paid is reasonable, but ultimately the clearing time for both networks is down to the likelihood of a 51% attack for which bitcoin is far more protected against due to the far larger amount of hash power. It's not comparable.
If I'm moving/storing $1 billion, do I care if the transaction costs $1 instead of $20? No - I care that I'm storing the money in the safest place to store value I can find.