Furutech DeMaga v Acoustic Revive RL-30 Mk III LP Demanitizers

So you are suggesting that carbon per se can be magnetized or is inherently magnetic? If there is experimental evidence to support that hypothesis, it is publishable in a good science journal. I assume this refers to carbon that is not covalently linked in the molecular backbone of the vinyl itself, without which there is no vinyl.

Mail me a record, I'll demag it for you and send back UPS/overnight.  

Send me a video of an LP being attracted to (or repelled by) a powerful magnet, and I’ll cave. I don’t deny your experience but I do doubt the mechanism.