IIRC, our solar system has a fairly unique setup which has helped life evolve here on Earth. We've got a giant, failed star not too far down the road with Jupiter. It sucks up tons of space debris that would have blasted us.
If you truly have a decent grasp on the scale of the Universe, aliens visiting us is hilarious. Somewhere between 100-400 BILLION stars in our Galaxy alone. Almost all of which have planets. That's a lot of territory to have to go check out assuming you've figured out how to break the laws of physics and can teleport around the neighborhood.
One thing I learned just the other day was that the Sun doesn't have a steady path on its trip around the Milky Way. You'd think it would just be a nice circular jaunt, orbiting the super massive black hole at the center. Nope. Due to gravitational forces of the stars around us, it essentially bobs up and down. It will go thousands of light years above and below the galactic plane. We are cooking along in what is called the Local Bubble. Interestingly, a super nova blew up millions of years ago and cleared this section of space out. The density of stars in this section of space we're traveling through currently is less than 1/10th of what it is for the rest of the Milky Way. We entered this bubble sometime 5-10 MILLION years ago and we'll still be traveling through it for millions more years to come.
So basically, we're at the ass end of nowhere with hardly anything worth looking at. We've been the ass end of nowhere and we're going to continue to be the ass end of nowhere. Yet, out of all the places aliens could check out they decided to come here to probe some buttholes. We certainly didn't call them since radio waves from Earth have only managed to travel 100 light years in the century we've been broadcasting. If you think aliens have visited Earth then you're tacitly saying you believe aliens seeded life on Earth and that they're coming back to check up on us. That's the only idea that makes any real sense. Unless we're saying these aliens have transcended normal reality or some shit, but if they had why bother with us and why fly around in weird ships, not announce themselves, and probe buttholes?