Watching that video with shells exploding all over the 'drone' and nothing happens to it.. almost passing though the object.

Since WWII, reports of Foo Fighters have almost always come back with some magnetic properties. Planes shutting down in mid flight, instruments going nuts. Those reports go back 60+ years. Pilots at the time have unloaded their entire ordnance on those things with the same effect the Iranians had… nothing.

You want to bring down that UFO, I believe you'll have to launch something extremely magnetic at it. Strong enough to destabilize that magnetic field holding the plasma in.

That's assuming it was similar to a Foo Fighter (it DOES look and behave like historical records)