No need for race to have racism?
1Prejudice, discrimination, or antagonism directed against someone of a different race based on the belief that one’s own race is superior.https://en.oxforddictionaries.com/definition/racism
1.belief or doctrine that inherent differences among the various human racial groups determine cultural or individual achievement, usually involving the idea that one’s own race is superior and has the right to dominate others or that a particular racial group is inferior to the others.https://www.dictionary.com/browse/racism
1. social studies the belief that some races are better than others, or the unfair treatment of someone because of his or her racehttps://dictionary.cambridge.org/us/dictionary/english/racism
Racism, also called racialism, any action, practice, or belief that reflects the racial worldview—the ideology that humans may be divided into separate and exclusive biological entities called “races”; that there is a causal link between inherited physical traits and traits of personality, intellect, morality, and other cultural and behavioral features; and that some races are innately superior to others. Since the late 20th century the notion of biological race has been recognized as a cultural invention, entirely without scientific basis.
Not a supposed race, then not racism.
The same reason we have different names for different cancers, we have different names for different discriminations. The causes and responses often differ with each entity.