I’m inclined to think that what crashed at Roswell was an advanced military aircraft.
Does it make sense that Super-Duper Advanced Aliens come across the galaxy with their advanced technoloty and come here to stub their toe and crash? No.
Does it make sense that a military prototype would crash near a military base and get covered up by military personnel? Yes.
Occham’s Razor.
Those who saw and handled the wreckage directly
INSISTed
OTHERWISE.
Dr Marcel who handled wreckage pieces at age 11 agrees with his dad OTHERWISE.
Our technology didn’t come close at the time.
Such assumptions as postulated just don’t match up with the facts of such craahed craft; with the arial behavior of such craft; nor with history.
As much as all the UFO sightings in the vicinity of Groom Lake (which is plenty). I recall the flurry of triangular or arrowhead shaped UFO sightings a few years before the F117 was unveiled...