Intellectual property laws are incompatible with Libertarianism.
Lemme rephrase. Do you have anything against the concept of intellectual property?
Yes, it's incompatible with Libertarianism. Why? Because it makes you a partial owner of my property against my will. That's theft, if only partial theft.
I own paper. I own a printer. I should be able to do whatever I want with them, including printing out copies of the latest bestseller and hocking them on the street.