Why Kaiser Wilhelm Hated His English Mother Victoria, Princess Royal So Much?

Kaiser Wilhelm II blamed his English mother for an extraordinary number of things. He blamed her for the withered left arm he'd carried since the day he was born, for the death of his father, and, in a letter to his closest friend in the spring of 1888, for bringing the German Reich to the brink of ruin. "An English princess who is my mother" he called her in that letter, which is an odd way to describe the woman who gave birth to you, unless you're making a point. He was making a point. And yet. This is the same man who knelt beside his English grandmother, Queen Victoria, through the final hour of her life in January 1901, holding her up with his one good arm.