Is it wrong to be racist?

[~Zeta~]

A teacher came up with this question when a student in one of my classes said that the substitute was racist:

Is it truly wrong to be a racist person?

I argued it isn't wrong to be racist. It is perfect human for all of man's actions and decisions. If someone's different, it may be unsettling but it does not mean to give them a title and a bad reputation from stereotyping and recurring events. No matter what you do or say, there will always be racist people. There are those mindsets that people have.

What do you think?

Discuss.