To support my stance I can cite the German phenomenon (many attribute it's 19th century industrial growth to unconstrained knowledge distribution made possible by lack of copyright laws) and the biblical "miracle of the five loaves and two fishes" where Jesus replicated five loaves and two fishes to feed a lot of people (today copyright advocates would say replicating bread this way meant "stealing" from the baker). And the fact I then buy a legal paper copy whenever I read a pirated ebook if I liked it while the lack of a pirated copy availability would never cause me to buy a legal copy (countrary to the concept of lost profit copyright advocates use).
At the same time I was initially surprised about the fact the scientific society is openly speaking pro-SciHub and pro-LibGen: most of the same people would generally say piracy is bad both because it's "stealing" from the copyright holders and because it means breaking a law. They would condemn using cracked apps, sharing movies and ignoring licenses, I have met quite a number of professors who would surely expel me from the university if I had scanned an expensive textbook and shared it with other students, yet they magically support SciHub. I find this phenomenon curious.