Something does exist. And it represents a safety risk and a possible national security risk.
But, you are welcome to your opinion.
I’ve heard reports that UFOs have been tracked on radar.
So yes, we aren’t all just hallucinating or imagining things. There is something there.
We can’t say they are extra terrestrial spacecraft. But just because we can’t identify what they are, doesn’t mean they don’t exist.
If their infrared trackers are locking on shouldn’t a sidewinder missile as well?