The DFB-Junioren Facebook page posted a selfie of a group of players from that team. Many, almost most, of the comments were just vile and shocking. But if you looked at the profiles of those who made these comments, it was just your usual trashy idiots, who barely have a grasp of the German language, despite being so "worried" about their so beloved fatherland.
The saddest thing is that they are literally just kids. You shouldn't be making racist remarks to anyone. But kids... that's a special kind of low.