Yes, I am disagreeing with you, but probably over matters of implementation rather than of ideals. I'm pro-patents (and pro-royalties) to the extent to which granting a temporary monopoly benefits society as a whole. I do not believe that that one has an innate right to such a monopoly, rather that it is to the advantage of society to grant such a right to incentivize the production of something beneficial that would not otherwise be produced. I presume this is more or less your position as well.

Where we likely disagree most is regarding term. The term for (non-software) patents seems almost reasonable, but I find it hard to believe that those 75 years after the life of the author (under US copyright) increases the production of great music. The 50 years from date of production for music under UK law seems more reasonable, but I'd guess that very little of the music I enjoy would suffer if this time was reduced sharply.