The Sharpe ratio https://www.investopedia.com/terms/s/sharperatio.asp attempts to solve this exact problems. It basically uses how much your rate of returns vary to help you compare the risk of return to lower risk assets.
It absolutely is. Consider elderly people getting scammed. You really want to defend the fact that they aren't victims?
Just download music from 3rd party sites. Not that hard, don't understand why you are complaining so much.
"They provide no value, and if they disappeared tomorrow, we would fine."
We would be fine, but only because someone else would quickly take their place.
It's about damn time.
They also create large amounts of value. You would get the same tax breaks if you provide the same value for society. You can hate capitalism all you want, but something you can't argue against is that it motivates people to provide value
Societies force you to ignore certain loopholes in the law.
Murdering people is bad … but terrorists are okay.
Raping animals is bad … but killing is okay.
Killing babies is bad … but abortion is okay.