I’ve never thought of the peace symbol that way because the Vietnam war was really before my generation, but I could see how that would change your view about the symbol.
I've heard people call the peace sign an upside down cross, but it's not IMO.
Myself, I figure if you look at the 3 downward prongs, they originaly stand for Sex, Drugs, & Rock'nRoll, but quickly evolve into Communism, Anarchy and Atheism.
The upper prong has proved to be the single finger salute, which of course is used to display anger and/or hatred.
There's really nothing sincerely peaceful about the peace sign.