You are free to hold that view, but nowhere did I see that anyone says their ideas are not valid because they're white.
What I did see was that the claim that cryptocurrency is unlocking power and wealth to impoverished people doesn't hold up to the reality that it's just perpetuating the same financial and power structures that have come before.
And to people who argue against that, well, I'd love to see who, for example, in Africa, is getting rich or at least better-off from the existence of any of various cryptocurrencies. Or where are the people of color in Chicago or Baltimore, spinning up their own coins or empowering their communities, or any of that?
For all the supposed world-changing potential these things supposedly offer, why do the outcomes they're producing so closely resemble the way things already are?
I, for one, would turn my opinion on cryptocurrencies 180 degrees if I saw them being used to give any of the war-torn or impoverished African nations (both of which are a consequence of European colonialism being exploitative and drawing borders to maximize regional conflict) a real leg up on the world stage; and one for all the people, not just the ruling elites there.
Think of it something like a sovereign wealth fund derived from crypto, giving every citizen a monthly draw -- why don't we see anything like that?
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And the explanation, by the way, for why you often see people making the claim that reverse racism isn't a thing is because, in these discussions, racism isn't just hating someone or assuming something about a person based on their skin color, but about the economic and political power structures that get wielded against certain groups based on skin color.
In the US, there's never been a white chattel slavery system (though white supremacists have spun a false narrative about the Irish to try and muddy even this discussion), there's never been policies that exclude whites from living in certain neighborhoods like redlining did for decades, etc. The machinery of the state has never been applied to white people the way it has been applied to people of color time and time again.
Black people can hate white people all they want, but you never see wholesale systematic destruction of white communities like, for example, the Tulsa race riots in the 20s.
So you can say this is all acceptable racism, but I for one can't imagine how anyone can look at any facets of the history of this country and come up with that same constellation of ideas that there's now anti-white acceptable racism.