You can't do it ad absurdum, though, and have to put the line somewhere. That reminds me - in one Czech Onion-like fake news, there was an article about the architect union collecting money from every person who looks at buildings; the more buildings you see, the more you will pay.

You just have to draw the line somewhere and I think that pirating for personal use is fine.

I think it's reasonable to say that pirating for personal, non-commercial use (even when "non-commercial" is always vaguely defined) is fine.