"You might not think that it should be but in my book it's a given fact that it is."
lets break that down...
1) "my book" would refer to your own personal collection of opinions
2) "given fact" would refer to something that isn't an opinion, that isn't debatable.
hmmm... i am beginning to think that you approve of your own opinions with an illogically high regard.
i would recommend opening up your mind, not to what you refuse to believe, but to the chance that what you believe might not be fact, but just belief, in which case you have no grounds to argue, as beliefs are a personal matter. you can try as hard as you want to make other people assume the beliefs that you do, but unless it is a "fact" outside of your "book", don't get your hopes up.
keep in mind that i don't have a disagreement with what you say, i'm just informing you of a flaw in your thinking. take it or leave it.