Hi Paul Mccluskey!
Your absolutely right, if Satan can convince mankind that they were either created by alien beings who are the progenitors of the Human Race then they feel that they have done their job. I have heard many lies about aliens such as with mormonism and how Jesus was from another planet and is the Brother of Satan and worked His way to being God. We can clearly establish a connection between this false Doctrine and alien beings from other planets. Amazing what Satan and His demons will do do destroy Christianity.
God Bless!