If any alien life developed like humanity has developed over the course of millions of years, that means they haven't figured out intergalactic travel either. Takes too long to travel through space and get anywhere significant.
Also no advanced lifeforms that knew how to travel faster than light or how to manipulate spacetime to jump through wormholes would consider anything on earth worth stopping for, unless they were specifically looking for resources which would mean they'd just ignore us like we ignore ants and take what they want, or otherwise they'd exterminate us to get to what they wanted.