Just to answer the author concerns about point #2. There are coins with entire Blockchain that can fit in my OnePlus 7. I am from Algeria (a country without a financial system), LTC and XMR are the coins that brought me out of poverty, not because of gambling but they allowed me to do software development consulting online without begging services like Wise to not ban my account for random suspicions.
The author somehow talks about Crypto currency but somehow keeps pointing to flaws in exchangers with KYC.. Again, a lot of progress has been made here, exchangers without KYC emerged (check out Bisq net)...
I just wish people would point out more honest reviews of the such technologies so we can improve together as a society.. Cryptocurrency might not add a lot to your life, but there are many people having access to instant, cheap and secure transactions is a game changer.. I don't care about the legality of it as those broken laws are probably not protecting the average citizen.