OP, to answer your original question: It sounds like your DH is perfectly comfortable in his own mind. No issue. In our case, it was me, the circumcised Dad that hated what had been done to me, and was adamant that DS would remain intact. DW was ambivalent as she had grown up with intact brothers and circ'd half brothers.
As for the rude comments - I can totaly understand your wanting to shield your children from such negative opinions, however, I feel you need a response that will make them stop, think and regret their callous behaviour. Something like "Do you really think that nature made a mistake?" or "Why is it that the rest of the world thinks boys are born perfect, but you don't?" Something that will force them to explain their comment, hopefully with some embarrassment. This could be a great opportunity to educate.