Not that odd. White has less sugar as it is more fat and cocoa butter. Milk contains the most sugar. White is the least nutricous lacking any coco solids but my measurements were in relation to sugar added and diabetes.
As for belittling thats a question of perspective. You are supposed to grow...
If your an adult eating milk chocolate then there is something wrong with your palate. I am guessing high level of sugar addiction and also high risk of diabetes. Its a kind of stylised babyfood.
I dont think much of Bournville TBH ,but Galaxy is just plain awful. White chocolate is a valid...