Racialism or racial categorization means sorting people into different groups based on how they look like or where their ancestors came from. This means people with light or dark skin color, different hair textures, and facial features might be put into separate categories. This is not necessarily a bad thing because categorization can help understand and appreciate differences between people, but it can also lead to unfair treatment or discrimination. Just because someone belongs to a certain category, does not mean they are all the same or should be treated differently. It is important to see people as individuals and respect their differences.