This is my opinion:
No race evolves with the technology for interstellar travel, they learn and create it. They're not likely to be certain that there's life in the
universe, as interstellar travel will most likely be developed before a telescope that can see into other galaxies. Therefore they'll most likely be
exploring not conquering when they first come to our planet. Of course, I know literally nothing as does everyone else in this board. Or at least, I
hope everyone knows literally nothing
The one scenario that popped into my head mid typing is of a galaxy with hundreds of inhabited planets. Just as we have gone to the moon, they would
go to their neighbouring space body and if they already knew that it was inhabited and they were an aggressive race as some users have put forward,
they may go with the intention of inhabiting that body. I relatable scenario would be that there was an intelligent race on the moon, and we went and
took over. They may then want to carry on to the next inhabited planet in their galaxy, and carry on that way. That would lead them to an 'invasion'
mindset, which may lead them to invade planets in other solar systems. Who's to say we're not that planet?
This is of course on the assumption that they're a life form we would recognize as civilization. Who's to say that negative thoughts are actually
aliens that manifest in your cerebral cortex and influence your behaviour to rebel against government, over time exterminating the human race that
way? If a species has evolved to interstellar space travel, they will have been around for, presumably, a million+ years. The extermination of the
human race through civil war over hundreds of years would be nothing for them.
Just my two cents, and I understand I've rambled a LOT, haha.
Cheers,
Ben.