This argument is the same as the one MPAA makes about lost revenue due to piracy, which in general is bullshit, because there is no guarantee that those people

This argument is the same as the one MPAA makes about lost revenue due to piracy, which in general is bullshit, because there is no guarantee that those people pirating stuff would have ever paid for it if pirating wasn't possible. So the answer is easy - you can't talk about stealing "attention", when the "attention" you're talking about never existed in the first place.