The fundamental ideas of OOP are pervasive data privacy and the consequent synchronization via message passing. Now, many OO languages have badly butchered that, but that is the idea, as in Smalltalk: Objects are opaque participants in a colloquy.

I'm not sure where you got "the majority disagree with your definition of the term" when I didn't even attempt to define the term until this reply! Or why you key on the word "orthogonal" which is in the parent of my comment, and certainly is imprecise: A better description would be, OOP holds no exclusive claim to these ideas. We don't all despise OOP, but rather the false notion that it is a "silver bullet." I quite like well done OOP with expressive types.

I'd be irritated by you linking to Wikipedia articles for "Programming paradigm" and OOP except they're mobile links, which means you're getting all in a hissy on the go, and that's sorta cute.