Not to get off-topic, but role-playing means that you make decisions as your character would.
Not to get even more off-topic, but as I always do when you make this claim, I refute it.
You may strive to roleplay this particular way, and that's great, but it's just one way of thinking about it. And a particularly poor one, in my opinion. First of all, given the complex ways people make decisions...often even lying to themselves about why they make them...I would assert it's basically impossible to determine what a character "would do". You may as well (which is what I suspect anybody trying to roleplay your way actually does, if entirely subconsciously) is decide what you, the player,
want to do and then retroactively justify it as roleplaying. And that's not a judgment: I don't think there's anything wrong with roleplaying that way, and it's what human beings do.
Second, I think it's horrendously boring to repeatedly execute "Most Likely Course of Action" for a fixed personality. In any good story the characters evolve, and I like my game characters to do the same thing. I much prefer to come up with a couple of ideas for a new character and then opportunistically grow it from there. Something happens in the game, and I think, "Oh, I just thought of an interesting idea for my character..." and right then and there I'll (in my own head) flesh out his background and personality and then take action accordingly.
Finally, controlling your character in an entirely metagame/mechanistic way, with zero "acting", treating D&D as simply a tactical miniatures game with persistence
is still roleplaying. You are still "playing a role" as a mage or thief or fighter, you are just not bothering with the personality/backstory side of it. And, before you get all high and mighty, unless you tell me that you describe every urination and defecation of your character, YOU are not roleplaying every facet of your characters, either. You are picking the aspects that you think are fun & interesting and focusing on those. Good on you. Now please get off your high horse, because really it's just a toy rocking horse.
Anyway, I have no illusions I'm ever going to convince you to stop repeating the quoted falsehood, but neither am I going to let you get away with it when I spot it.