It’s definitely waxier in consistency, especially Hershey’s, the best known American chocolate. Not sure of the truth, but the story goes: Hershey’s sent chocolate to the military members overseas in WW2. In the summer it would melt so they changed the formula to make it more stable, which made it waxy. When troops came home they wanted what they were used to, so that became the norm. Then they switched to corn syrup, which also made it worse. There are good American chocolates, but they aren’t coming from Hershey’s or Mars.