Much of the abduction discussion has the same basic cast of characters (short and tall grays, mantids on rare occasions).
As to who or what is behind the various lights, tic-tacs, triangles, etc., who knows?
“Much of the abduction discussion has the same basic cast of characters (short and tall grays, mantids on rare occasions).”
The problem is that this does not cover all of the abductions—and definitely not all of the human contact cases.
Fascinating reading is the Rosales “Humanoid Encounters” series of books.
This is the first of the series:
https://www.amazon.com/Humanoid-Encounters-AD-1899-Others-amongst/dp/1542722055
Occam’s Razor is useless with this stuff—it is just too complex and there is just too much of it.