That seems more like an opinion based on your emotions. Maybe we don't have sufficient technology to detect other lives in the universe. My grandfather didn't even had a tv when they were kids. It's too soon. We're not as technologically advanced.

We're not even sure about the creation of the universe. We constantly disprove our own theories.

You can't theorise about what a sufficient intellect would realize because you are not one. We barely even have some resemblance of a.i.

I still have to wipe my own ass and make my own food. I don't have a robot for these. I can't even fly to the moon. We're still monkeys in the grand scheme of things.

We're not even masters of our own planet. Not only that but we also don't know exactly how our own bodies function. We're not even sure what the optimal nutrition is and we've been eating food for so many years.

Philosophy is just a couple of thousand years old. We're just now beginning to think for ourselves. We need better tools to see the universe.