By viewing someone (including yourself) as a New Yorker, for example, you remove that person's individuality and instead, see him or her as a
prototypical representative of the group called New Yorkers. This process then allows you to distinguish New Yorkers from people who live in,
say, Texas or North Carolina. This is an example of

By viewing someone including yourself as a New Yorker for example you remove that persons individuality and instead see him or her as a prototypical representat class=