You know what, you're right. Damn Roddenberry - why didn't he just make the Klingons hate the Federation in TOS?
Oh and why didn't he make it so tensions always ran high between Romulans and the Federation in TNG, not to mention the sneaky Ferengi and Cardassians! What a jerk, I can't believe he didn't do that.
Oh, wait, he did.
