Why are goats seen as Satanic?
I think its because their nature is contrary to sheep, sheep can be easily herded by shepherds and are drawn as symbolic for Christians in the Bible whereas goats go their own way. Often you hear of a pastor tending is flock, since the word pastor literally means shepherd. Goats are usually depicted as creatures with Satanic attributes since there are a handful of pagan gods who have goat-like features and the popularization of images such as
Baphomet draw more parallels between Christianity's greatest adversary and goats.
Something I find interesting is that being referred to as "sheeple" is a pejorative term meaning that people are too dumb to think for themselves and just go with the flow. I do agree that thinking for one's self is important, maybe I am more aligned to the goat here? Is thinking for one's self considered an evil or Satanic trait?
I need to do analysis of other religions to see their conclusions. I imagine they're greatly impacted by their geography, since goats were a feature of the Mediterranean region and not as prevalent in other places.