I don't automatically believe that "Aliens" are demons or Fallen Angels. The proof is in the pudding after all.

I think we must just keep an open mind instead of rushing to judgement and risk failing to recognize what might indeed be the Second Coming. In Palestine Jesus was not recognized and was crucified out of some people's fear. Let's be careful not to "crucify" by way of public condemnation before we have heard them speak ouselves and weighed their words.

All we can do is, as the comment above suggests, "wait to decide" and not, therefore, make arbitrary judgments out of fear. There is enough fear in the world as it is.