It's bad enough that the US already deliberately shoot at their allies (look at all the "friendly fire" incidents the US cause) without them sneaking about in protected airspace without identifying themselves.
If there's a military plane flying around without any identification, it's either a Russian flight up to no good or an American one up to no good.
If anything, it seems to be you who is suffering from an affliction not unlike the one you wanted to recognize in somebody else.
It's strange to frame that as if it's some totally wild interpretation of events (though obviously it doesn't justify shooting down anything that isn't transponding)
I mean he obviously isn't, he's way too fucking dumb and demented for a good supervillain. Nobody would buy a guy looking like that as the "super villain". Sleasy mafia boss wanting to sleep with your preteen daughter in exchange for a favour, yes. Super villain? Never in his wildest dreams.
Maximum destructive, irreversible response.
Even if you think this is sometimes warranted, have you thought of the edge cases? You seem perfectly happy to be shot down yourself, sitting in your airplane with a failed transponder.
What's gotten into you to want to kill people so much?