it's the spiderman pointing at spiderman meme.
i agree to the copyright because a metaphorical gun is held to my head by law — if i break the copyright agreement then law has power to persecute me. i don't see how that's any different to a layperson.
you can split hairs all you want about agreement vs law, i'm not interested in that. there's a reason i didn't go to law school, those sort of debates are boring and annoying. yet here i am...
The law isn't relevant here. The agreement you make is.
this is just a pointless exchange now.