[thaumasiotes]

Do you have a point?

Here's Shredded Wheat: https://www.postshreddedwheat.com/products/the-original/

0g sugar per 60g serving size. Do I now conclude that you were trying to fool me into thinking oatmeal contains less sugar than cereal when in fact it contains much more?

No, that's nonsense, oatmeal is a kind of cereal. The amount of sugar in it isn't even related to whether it's oatmeal.