While there is a lot of evidence supporting both sides of this it is up to each person to come to their own conclusion as to whether they believe in UFOs, and Aliens visiting us. I, myself, believe but some of my speculation takes a different course than just mere aliens visiting us.
I would so love to see aliens come and put an end to the crap our own world leaders are doing to our planet but they probably look at us like where monkeys that's why we never see them.
Roleplay,
Maybe, but there is a heck of a lot of space out there and a lot of worlds. Maybe they just haven't found us yet. Also, we always assume aliens would have some super high level of morality… but that is our biases towards our morality coming through. What if the aliens that come are a warrior race bent on conquest and enslavement. The grass is not always greener… just saying.
Why have aliens not done any thing to save us from ourselves? Well that is where my theory comes in. Some of these aliens we are seeing are not from another planet. Hey are from our future. They are going back in time to see how they got to the point they are. They can not exterminate us as that would eliminate them thus a catch 22. I would hope that they can point the way we need to o make life better for all in the future.
If they are coming from our future why don't they just tell us how to fix everything instead of being so surreptitious about it? I mean, they could just fix everything and they'll be better off and we would too. And then they could show how to build a rocket to get us off this rock and to another planet in less time so I can go lead the defense forces.