> most democratic type of currency/money/property in the world, how can you argue against that?

Accepting any currency that's not a stablecoin, gives power (not just purchasing power) over you to those who bought it really cheap without doing as much labour or as much spending as much capital as the late ones. Bitcoin has been more of a security - like a startup's shares - benefiting early investors at the expense of late ones. It's the opposite of "democratic".