It seems to me that this wouldn’t be an issue if BO simply acted like an American let alone a natural born citizen. We love our country. We don’t want to fundamentally change what we have. We wear American flag pins on our lapels. We place our hand over our heart when we say the pledge of allegiance. We believe that “We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.”
You're probably right but it should. No transgression of the Constitution should ever go unchallenged.
Acted? It is an issue even if he acted like one. There are reasons for this qualification...loyalties, influences, etc...