You don't have to run all the way to quantum non-locality to disprove the JWs (and indeed most of the bible's claims). Geology, biology, archaeology and astronomy all do that pretty handily and are much more easily understandable by the lay-person than quantum entanglement is. Also i'm really not sure how quantum entanglement actually disproves JW claims from your post.
Hell, as far as JWs are concerned, basic arithmetic disproves them. 1 (generation) != 2 (generations).