While I'm not disputing what you and Norway wrote (both are well written posts), you need to differentiate between Devil Worship in the Christian sense and devil worship - meaning the worship of some sort of representation of an "evil" deity.
Thing is you can't really separate them. No doubt, a lot of pagan rituals involved inhumane acts, but it is the demonetization from the church that has directed and tainted the focus with unnecessary evil connotations. There are also a lot of good, healthy paganism, but since it encourages independence not submission they are promptly put in the evil sack.
No doubt there would still be incidents like this. We have a dirty history which will invariably influence people when in certain emotional states and situations, but that has got little to do with the false concept our religions have imposed on us.
I think you're preaching to the choir. I'm not suggesting that paganism = devil worship. Absolutely not the case.
Simply that I don't believe that we can conclude that even though pre-Christianity religions had their "evil" figures in them, nobody worshipped them. There are examples of that happening in other religions. Christianity popularized "Devil Worship", no doubt about that. But prior to Christianity there were other perceived "dark forces" and I think it's a stretch to suggest that these forces were never worshipped.
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