what cause a person to become prejudiced and remain prejudiced?

Question

..."causes"

Answer 1

Mostly ignorance and fear.

Racism is against the teachings of Jesus Christ and the Catholic Church:

Created in the image of the one God and equally endowed with rational souls, all men have the same nature and the same origin. Redeemed by the sacrifice of Christ, all are called to participate in the same divine beatitude: all therefore enjoy an equal dignity.

The equality of men rests essentially on their dignity as persons and the rights that flow from it:

Every form of social or cultural discrimination in fundamental personal rights on the grounds of sex, race, color, social conditions, language, or religion must be curbed and eradicated as incompatible with God's design.

For more information, see Catechism of the Catholic Church, sections 1934 and following: http://www.usccb.org/catechism/text/pt3sect1chpt2art3.htm#1934

With love in Christ.

Answer 2

Programming from childhood by parents, family and peers.
A traumatic or well-remembered event that was a negative in the life of the prejudiced person, in which the other ethnicity was involved.
A pride in one's own ethnicity will make them prejudiced against others.

Answer 3

I agree with your final statement. It is incompatible with God's way and design. Unfortunately, we live in a far different world than that which was here in the time of Jesus, when he walked this earth; or when even the prophets and seers of old walked this earth. However, human tendencies haven't changed much over millennia. I also agree with the above 2 commenters. Pride, Ignorance, and arrogance all will make people think of all kinds of "excuses" for why, unlike Jesus teachings, not to love our neighbors. However, in order to not be prejudicial, we must practice the words of Jesus and "love our neighbors as ourselves."

Answer 4

They are taught it... ignorance and arrogance allow it to continue.