Racism:

Racism is the belief that groups of humans possess different behavioral traits corresponding to inherited attributes and can be divided based on the superiority of one race or ethnicity over another. It may also mean prejudice, discrimination, or antagonism directed against other people because they are of a different ethnic background.

Ethnicity:

An ethnicity or ethnic group is a group of humans who identify with each other on the basis of perceived shared attributes that distinguish them from other groups. Attributes that ethnicities believe to share include language, culture, common sets of ancestry, traditions, society, religion, history, or social treatment.

Kindly, fuck off