When you help the Valakans and not the Menk just because the Valakans have explicitly asked for help while the Menk are happy idiots (stupid housewives or Uncle Toms) you become something far worse than an imperial force. You don't merely conquer a world and subjugate its people, you randomly assist one group at the expense of another while being able to feel smug and righteous. But go ahead, if you think that helping the Valakans is an ethical impetus helping every subjugated Klingon and Romulan species is a far stronger impetus. You'd have to go to war with each and every power in the two quadrants and you'd have to unleash a total war that costs billions or trillions of life. Such nonsense, based upon intellectual laziness that refuses to acknowledge that you can't play in deep space like you play on Earth, should indeed not be taken seriously.