Why is Humanity Always The Victim of The Martians?

The martians are always coming to invade earth. what is surprising to me is that we never try to invade the martians. the keep killing us but we never go and say “are you the ones who invaded us?”. But the real problem is that we don’t know where they come from. we see them coming but we never see them on mars. they never build any cities. they want to invade us before they build their own world. it also seems that the only martians in the universe are all on that one ship. so if they die, their whole species die. this is how intelligent the “powerful” martians are.

I also wonder why they attack US. Why don’t the go to a poodle and start fighting them? why is it always us? they could kill the poodle civilisation a lot easier than us because we have weapons. i will never know how they built those u.f.o.s or how they almost conquer us when they have such a lack of intelligence