That being said, I think it's something worthy of exploration. My interest in the subject really began when I listen to people around me who saw and experienced things. It's one thing to read books or watch documentaries about UFOs, but it's another when normal "everyday people" who aren't interested in this kind of thing tell you their stories.
Chasing down misidentified flying objects and hoaxes will not. The idea that numerous spaceships, each with more potential kinetic energy than mankind has created in its entire history, are just flying around our atmosphere without leaving massive and easily recordable emissions is ludicrous.
If they can snap accelerate with essentially infinite jerk, as observations seem to suggest, then they’re not playing by the same rule book as us, and have fancy inertialess tech that’s beyond our ken.
I’m not some true believer in little green men, just a scientist who won’t rule out what seems impossible just because it seems so.
Any sufficiently advanced technology is indistinguishable from magic, and all that.
At present and without extraordinary evidence to the contrary, I see human error as vastly more probably than "inertialess technology".
Or do you not know any specific credible cases of unexplained UFOs, and just dismiss the entire phenomenon because of its "low probability."
(I'm being facetious because many or all of the interesting cases easily rule out human error as the source of the phenomenon. Simultaneous human (and radar!) hallucination maybe, but not error.)
Otherwise you can only examine through the lens of the known physics, which makes them being alien spaceships impossible.
Identifying, understanding and explaining/eliminating exceptions is how science progresses. I know it causes discomfort to see something that defies expectations right in front of you. That does not mean we do not examine it. We should.
UFOs have been filmed and recorded by radars everywhere on earth. Something is going on. That doesn't mean it's ETs visiting us. On the other hand, it's a possibility. We don't know.
Now, does it mean we have to stop everything we're doing to investigate UFOs? Nope. All I'm saying is it's an interesting subject to explore.