Answer:
I believe that the central problem with this is that the museums didn't display the art under the original context in which the art was created, which causes ideas such as primitive art, strange, or even bizarre.
Step-by-step explanation:
In the nineteenth and early twentieth centuries, Europe was the "center of the world", and the art created there, according to them, was used as a reference. When other cultures begin to be explored and their arts gradually were incorporated by the museums, the population was not used to look at them as they did with the European art, causing an inevitable comparison and the prejudice.