I would like to add another viewpoint to the discussion. I am German, and for me it would heavily depend what you think while you wear it. Basically if I would ask you “what do you think about us Germans in Ghana”, the reply of the person would determine if them wearing Lederhosen is inappropriate or not. I absolutely agree with the fact that recognition of the mistreatment is the key point here; however, you often cannot recognize it from the outside. Obviously if someone wears a big MAGA sticker on their back, or a “Black Lives Matter” pin, it is easy to comprehend; but as very often in life, most situations aren’t as easy as that. Long story short, we often cannot recognize from the outside if something is cultural appropriation or not; we would need to ask the person.