(a) Those who download stuff illegally instead of paying like 0.01% of their disposable income per year for it whilst making about as much money as those who have created the content.
(b) Those who download stuff illegally instead of having no access at all or paying completely unaffordable fantasy prices for it whilst making only a fraction of those who have created the content.
In which group you fall depends mostly on where you were born. And this is not primarily a debate about inequality as much as it is about infrastructure. There simply is no Netflix in most parts of the world that gives you reliable access to a huge movie library for peanuts.
So when you say "you weaken the case the rest of us" you should be aware of how "you" and "us" can mean very different things depending on who says that to whom.