As for the radar being fooled by reflections, even commercial air traffic control radar data is processed to remove artifacts caused by reflections, ground vehicles, etc. before it is displayed. I have no doubt that the SPY-1 AEGIS radar system onboard some of these ships that did track these objects is vastly more sophisticated than simple commercial radar.
The Freeper of course.
Tracked emissions of radiation. EM radiation reflects, is varied and isn’t subject to aerial flight characteritcs.
That’s why these artifacts/phenomena are called UAPs, not necessarily objects....