Is the Jesus in catholic churches a pagan messiah?

Im talking about the christ that they normally have in churches that is nailed to a cross.The one that has long hair.When in the Bible it states that any man with long hair is a disgrace.So,if this is true,how can the christ that everyone worships have long hair?UNLESS,that isn't the true christ.Also,I've seen in photos of churches,photos of the same "christ" sitting on a throne,and around him is a hexagram.But aren't hexagrams suppose to be the most evil polygon there is?One that is supposed to be used to invoke demonic forces.Unless im wrong,we have all been brainwashed to worship false idols and false photos of false messiahs.when GOD himself told us not to make false idols of him.Is this true??