[Udik]

Why would the US fabricate fake UFO videos to send to Russian/ Chinese militaries a message that is, as you imply, perfectly clear? They're the only recipients of the message, they understand it well, and nobody else cares about it. So why don't they just say it plain and openly?

So your explanation implies multiple conspiracies mixed with sensor errors, lying or actually crazy pilots, and a general pretension of being clueless, to send a message of having some advanced technology you could easily publish about in a military tech journal?