if you know the real meaning of copyright infringement then you'll find that you're wrong. they don't own the paper you draw on, but when you use your own materials to recreate the recognizable creations that they legally own (from the exchange of goods and services with they have done with the original artists, that they absolutely have kept records of doing if you ever up to challenging that), then you are still reproducing something they own without their permission.

you can say they can't do anything all day long if you dont want to hear me, but if for whatever reason, they wanted to take a break from making billions of dollars from all their operations just to make an example out of you and humiliate themselves as well in the process, they absolutely are within their rights to exercise the same protections that also extends to everybody else with intellectual property.