"Some places are so terrible that the only external financial systems unregulated enough to allow them to participate are these specific unregulated financial markets" is some net good being produced in end for the citizens of those regimes, and circumstantially the "block chain did that" I guess, but that still doesn't tell me why you needed a block chain to be involved to begin with.
The problem with that is, these transactions are now on an immutable ledger (which is the actual use case of block chains).
These transactions could have been made with any "thing" that enough people agree has some value.
"any" is going a lot of heavy lifting there.
Apart from people agreeing on value, that thing also has to be: 1. out of their governments' control (all the examples had governments gone bad), 2. easy to transfer/carry, 3. durable.
Can you please name a few alternatives if you think that's a simple problem?
Bitcoin fits the bill for those aspects. Can you name a few other "things"?
I do not disagree that blockchain tech has a good use case. It's just that it does one thing: a distributed ledger. That's it.
No, most reasonable adults have a problem with crypto.
What's the advantage in burning the entire power consumption of Zaire for a month, just to pay for a tin of beans?