Re:Assumptions about ETs (Score 1)

I agree

For example, imagine an advanced alien species which is living on a planet near the end its usefull time. There are billons of desperate aliens looking for a habitable planet. And then they find earth.

Would they respect our ownership of our planet? Would we if it was the other way around? I do not think so. After all, we propably appear rather primitive and weird to their senses.