‘Inappropriate’ is subjective. The definition of cultural appropriation is not clear and leaves room for subjective interpretation. Who defines what is the inappropriate adoption of another culture? The tasteful way in which many sports teams pay homage to Native American cultures is not inappropriate in most cases.
In many cases, adopting aspects of another culture’s dance, music or cuisine leads to the development of cultural blending and new and creative works of art. The blending of two cultures that leads the majority to adopt aspects of another culture is a net positive. Branding this adoption as cultural appropriation and attempting to prevent it is both damaging and counterproductive.
A world where everyone only employed their own cultural imagery in their art and symbolism would be boring, unimaginative, and could fuel ethnic tensions. It would keep everyone in their cultural box and hinder integration.
As a result, not only should cultural appropriation not be offensive, it should be encouraged in the interest of ethnic harmony and collaboration.