Everything she said could be said by someone claiming it was constitutional to ban certain books or religions, or to in some situation suspend the fourth amendment or any other part of the Bill of Rights for some reason. Feinstein is about to admit this.
Cruz insists on an answer: if there are exceptions to the second amendment what about the others? Okay, now she answers, "...obvious, no", before trotting out the child pornography card as an example that all rights can be restricted. Dick Durbin then joins in condemning the idea of absolute rights. And since they are not absolute, they are not really rights at all, as the Democratic Senators demonstrate. The government can restrict them however they like.
They are wrong. A good understanding of natural rights really helps clear up issues like this.