Because that's history. I had chatted about this topic with more than one American, they usually used "I am not proud of what we did to native Indian people" to wrap up the talk, which I think it's decent enough, because it's what happened hundreds years ago, it's not their fault.

The pirate software and movies are so rampant in China, if everyone can stop using them just like we boycott Japanese product, the market will be much cleaner.