Actually I'm more knowledgeable about this stuff than you are, and it's still a stupid idea. It fails to account for all the tax and legal compliance issues that vendors have to deal with.
And real vendors don't want cryptocurrency magic beans anyway. They want useful currency like dollars or euros that they can use to pay their own suppliers.
I doubt that. But hey, if you're so knowledgeable, then you'd realize that the systems do in fact support taxation and make auditing for compliance with any goals far easier.
Technology empowers individuals and smaller communities. That's what it does throughout history. Personal computers. Personal printers. VOIP instead of $3 a minute phone calls. The Web instead of gatekeepers at radio, TV, magazines, newspapers, etc.
In all of those cases, you would probably say "the real vendors don't want the Internet anyway". Who needs email when there are phonecalls? Who needs the Web anyway when there is email? Who needs online dating sites when there are matchmakers?
Nathan Myrhvold at Microsoft told people at Excite that "search is not a business".
Economist Paul Krugman wrote that by 2005, it would become clear that the Internet's effect on the economy is no greater than the fax machine's.
You'd be in good company ... a lot of smug people have always said this newfangled stuff is totally useless because people are perfectly fine using the "useful" systems they've always used, not "magic beans" like this new programmable money.
And real vendors don't want cryptocurrency magic beans anyway. They want useful currency like dollars or euros that they can use to pay their own suppliers.