It was interesting to find out why Anne was considered a freak by others in the troupe.
What gave Anne freak status in the eyes of her fellow circus members was that she, as well as her brother W.D., was a person of color. As seen throughout the whole movie, racism was a big issue at the time (though not much has changed)
- - https://screenrant.com/greatest-showman-movie-anne-zendaya-freak-racism-explained/