it's evil. According to these people, since even your thoughts are based one what you've learned, words from the past, your thoughts don't belong to you. As to what you create? Doesn't matter if you hit on a whole new way of looking at things, of doing things, your idea, and the fruits of your labor, do not belong to you. And they think they have the moral obligation to loot you for it. They are evil.
I'd bet an awful lot of these people are among the "Communism wasn't bad, it just never had a real try" school. And would make excuses for Stalin if you pinned them down on it.