So we all have different opinions on cultural appropriation, why it's wrong, why it isn't wrong (it is), or why you just don't care. Sure, people can wear what they want. Sure, people can "appreciate" a culture. But there is a big difference between appreciation and appropriation.
Cultural appropriation is the adoption or use of the elements of one culture by members of another culture. ... Often, the original meaning of these cultural elements is lost or distorted, and such displays are often viewed as disrespectful by members of the originating culture, or even as a form of desecration.