Why is the reverse cross used as means of Satanism or evil against god?

by Fascist_Viking

I did some research about this but i couldn't find anything other than why pop culture made it popular. So here's my question why is the cross reversed reference evil and is there anything similar in history about this that could be taken as reference from what the horror movies are doing?

AncientHistory

While there is always more to say about the subject, you may want to see my answer on Has an inverted cross ever meant Satanism?