> Most people prefer their money increase in purchasing power, not decrease. I also don't buy the argument itself.
Most people with money would. Most people with debts wouldn't.
The problem is that most people don't have money, but they do have a mountain of debt. (And even among people who are above water - they have assets that exceed their debts, not dollars.)
Actually, while we're on the topic of what most people want, that would be a debt jubilee. And, while we're at it, a redistribution of wealth.
Again, what part of the argument do you not buy? Billions of people have been lifted out of poverty, by entering the debt economy. Aside from communism, there has been no example in living history of an increase in standard of living without a debt economy. A debt economy is only possible in an inflationary system.
* It doesn't matter if its still dominant, and whether or not it will be overtaken. The point is that in 2017, I can do international business with traditional currencies just fine. Saying that you can use crypto-currencies to do international business is quite literally, a non-solution to a problem that I don't have.
* If you have escrows, you've just re-invented the financial system, with all its non-blockchain ledgers, arbitrary judgements, and middle-men.
You've given an example of the least reversible fiat monetary transaction (Non-erronous wire transfer - second only to Western Union in its capacity for fraud) - where you get exactly the same protection as you do with crytocurrencies (None).
If you used a credit card, you could have charged back. If you used any one of the pseudo-escrow services, like PayPal, you could have disputed the purchase. If you wired money to the wrong account, you could have have it reversed. Yes, fiat currencies have some sharp edges. In contrast, cryptocurrencies are like trying to hug Edward Scissorhands.
I can supply an anecdote where I once gave fifty bucks to a guy in exchange for a bike, and he laughed at me and rode off. For some reason, though, there aren't very many anecdotes where a lapse in OPSEC results in someone withdrawing five billion dollars from the Bank of America's systems into a Bahaman slush fund. In the crypto-coin world, this happens every other month.
* You misread that part of my post.