What the concern is about is that liberals are here trying to say Ted Cruz, a conservative US citizen at birth, cannot be president. It isn’t about discussion of citizenship, it is about liberal politics and trying to torpedo Cruz.
No it is about the flexibility of the Constitution.
These threads look a lot like the back flips that Kerry and Biden have had to make concerning whether or not the President can strike Syria without asking Congressional approval.
The law is the law unless it disagrees with our current flexible position.
Cruz is sounding better an better because he has such a small bar to leap over.