> Intellectual property is a good example of the contradictions of capitalism. It destroys the principles of freedom, but in truth is necessary to perpetuate the capitalist system.

Your assertion is quite wrong and far-fetched. Intellectual property is not necessary to "perpetuate the capitalist system", at all, and asserting otherwise has no bearing in reality. Your right to private property and to own means of production does not depend in any way on the state being able to stop others from copying concepts or ideas.