I think a lot of this Y stuff is Jewish numerology. The one number is God. The first entitity. The two is the ffirst divide from God. So the horns or the Y is a divirging path. Away from the natural order or God. The Satan(opposer) path. So the number 2 or the two horns becomes evil.
Kind of stupid but what can you say when they cut the tips of their dicks off?