I think we'll agree to disagree. We're having two public congressional hearings and lots is going on behind the scenes because congressmen think the Pentagon isn't being forthcoming. The Schumer bill is really incredible reading and it is being fought by the defense lobby - why? The US government (and many other governments) takes this issue quite seriously and is openly stating there are numerous encounters with crafts we can't explain. Those are official admissions by the US government.
So, the choices are only: (i) the crafts are ours (some dating back many decades) and we made huge technological leaps, we decided to test them on our military, and the reports that are being released about our ineptitude to deter them are disinfo to cover up US covert projects; (ii) Russia/China/whoever has lept past us massively; (iii) all historical reports are attributable to misidentification or our sensors (in many cases, multiple sensors, radar, and visual) being shitty; or (iv) non-human.
I've cast my lot on (i) and (iv). Others seem to like (ii) or (iii). It is what it is. But this is a self admitted big problem presently for our military and just because some folks don't think its (iv) doesn't mean we get to blow past the question. The evidence for (ii) seems quite weak and we'd have a big problem if it were true and while (iii) undoubtedly explains most, it doesn't explain a small subset of the truly interesting cases. I think the evidence for (i) is fairly strong (Ben Horowitz recently stated someone in the executive branch told him we classified whole wings of physics in the 60s/70s) and we successfully hid stealth technology for quite some time, so there is precedent. (iv), while incredible, has the support of lots of credible/serious people on both sides of the aisle with access to a lot of the classified data and footage that normal folks simply don't. You have to give that some credence.