There's a difference between investing in companies, states, and individuals (stocks, bonds, loans), saving in a bank (depending on the structure is usually tied to some kind of investment like those, but not controlled by the saver), and hoarding something under the mattress.

Holding BTC is the same as the last one. The holdings are not invested in anything remotely productive, it's just speculation on the future value.

I would have to disagree with you. Seeing what has happened to crypto the last few years, it's very apparent that things are changing. Everyone on here is talking like bitcoin or any other crypto is the disease and not a symptom. I believe that it's merely a symptom, a anarchy of sort, against the old ways.

Investing money in productive enterprise is the thing that is in societal benefit. Investing money in a virtual asset that has no other benefit and massive ecological costs is not a benefit.

We will see. As far as I can tell, it's the productive enterprises and everyday people that are ruining the environment. But hey, your comment sounded smart, which is the the real goal here.