There are different definitions the noun "human" has. One is universal and scientific, where it is applied to ever homo sapien born from there on out. The other could be considered more cultural, where the conception of humanity is built from practices and norms which inadvertently disregard cultural relativity. The latter results in dehumanization of other ethnic and cultural groups, often coming from a eurocentric position.
I don't believe anti-humanism necessarily proposes to complete eradication of the word human itself, but it does ask to deconstruct and recontextualize the more colonial and European roots of the word. There is no one way of being human, a person's idea of humanity will always be relative to what they experience throughout their lives.












