I will be honest...This might sound goofy but, I believe that the whole notion of "massive alien destruction when they interact with humans", is a CAC concept that has been normalized in people's minds due to their control of the modern media. I seriously think they depict possible human-alien interactions in an aggressive way due to their past with every other group. The 1st initial interactions they had with Han Chinese, Yamato/Japanese, Papuans, Maoris, Incas, Mapuches, Zulus, Mandinkas etc, were always hostile.
I mean...A very advanced group, with unthinkable technology, thousands of years ahead of us, and their main goal would just be destruction? Not share or teach their knowledge or whatever. Just destroy, enslave and kill?
