It's not a safe assumption that other forms of money exist that are less problematic than Bitcoin. People can and can't buy things using certain kinds of money largely because of the results of war or the threat of war. I'm always amazed at people that are confident the US Dollar machine is more ethical than Bitcoin.

There's simply too much to consider to know for sure, and the experiment of making a better version of money is probably at least worth as much as drying clothes, especially when you consider it's as equally opt-in.