I agree with you completely...there is no more proof that god doesn't exist as there is proving that he does. That said though, there is no proof that the MIB do not exist. For me to say that something is real you have to prove it. Let's say, for example, when a child sais that there is a monster under the bed. Would your child be lying to you on purpose?...is there any proof that there isn't an invisible monster under the bed?? But we all know that there isn't any such monster under the bed.