I'm really split about this topic. No, they won't ever stop "piracy". Yes, I have used unlicensed material in the past. Not any more.
Thing is, it's such a multi-faceted mess and there are many sides contributing to it.
1. It's not piracy. The word was merely cleverly chosen to dramatize the subject in order to grab attention and put it in a simple, little drawer where it doesn't fit in. The act of piracy would have you take away an object, continously depriving the original owner of its use, generally accomplished by violent means. Neither one is the case. Yes, it's wrong. But it's not piracy.
2. A licence is a pretty arbitrary concept. Up until 100 years ago, a musician would sing songs. Who cares where they were from. He sung, and that's what he was paid for. If you wanted more money, you would sing more often. Nowadays it's 2 months work plus 2 weeks in a studio and a musician expects to be paid until the cows come home. Of course, artists prefer the latter concept, and I can't blame them. It's also the law, but I just want people to consider things from different perspectives.
N.B.: I do see the difference in software products where there may be many years involved and need to covered by selling that work as piecemeal, it's rare one entity could or would pay for that work.
3. There's several kinds of people who use unlicenced products. Those, who'd buy if the price were considered reasonable and those who wouldn't spend money, no matter what. Netflix, Hulu, iTunes et.al. clearly show, that the former can be convinced. For the latter? It won't change a thing. I conclude, that rights holders could profit more from calming down, saving the legal bills and watching the $$$ roll in that'll surely follow acceptable deals.
Please understand that I'm merely trying to shine a light on things. I do not condone or excuse the use of unlicenced materials. I just think that the whole concept and it's legal measures are partially a bit silly.
This leads to situations like a few years ago, where they almost raided a kindergarten because the kids were singing "Happy Birthday" without a proper licence. I kid you not.