I actually said I avoid close-source things (referring to NTR). I partially agree with Richard Stallman, but "software should be open/free" is more my preference than an ethical claim. However, I do think intellectual property is mostly unethical, in a sense. I can understand people wanting to keep information secret and charge money for it, but property should be reserved for scarce tangible objects and not ideas and words (or their digital representations). I don't think people should be penalized for sharing information, even if you really want it secret (i.e. your credit card number or penis size lol).
I dislike consoles and other DRM machines like them. I think people should be able to charge for software, but if someone shares their purchases, there should be no legal penalties because it shouldn't be considered property. Though obviously the seller can enforce their own penalties (bans, business sanctions, whatever). So if people want to secure their profits, they need to get creative with their business model.
There could potentially be benefits to intellectual property, like medical patents incentivizing researchers to find life-saving drugs without worrying about people simply reverse engineering their drugs. But I think the negatives outweight the benefits.