Lives and property of the person in an Islamic state are considered sacred, regardless of his religion. Islam also protects the honor. Thus, in Islam, insulting others or humiliating them is forbidden. The Prophet Muhammad (PBHU) said:
(Verily, your blood, your property and your honor are inviolable)
Racism is not allowed in Islam, the Koran says about equality of rights under the following conditions:
(O mankind, We created you from a male and a female and made you into nations and tribes, to know each other. Truly a noble of you before God is the most pious, verily, God is all-knowing, All-Aware.) (Qur'an, 49:13)
Islam rejects certain individuals or states to welcome because of their wealth, power, or race. God created people as equals, something that distinguishes one from another faith and piety. Prophet Mohammad (PBUH) said:
(O people, your God is one and your forefather (Adam) is one. The Arab is not better than non-Arab and non-Arab is not better than the Arabs, and the red (that is white with a red tint) the person is not better than the black face and black people are not better than a red person, except in piety.)
One of the major challenges facing humanity at present is racism. The developed world can send a man on the moon, but can not stop people from torture, killing, or degrading another person. Since the time of the Prophet Muhammad, Islam has shown us the various ways in which racism can be stopped. The annual pilgrimage (hajj) to Mecca shows the real Islamic brotherhood of all races and nations, when some two million Muslims from around the world came to Mecca to perform pilgrimage.
Islam is a religion of justice. God said:
(Truly God commands you to return trusts to those to whom they owed, and when you judge between people, judge the fairness ....) (Qur'an, 4:58)
And he said:
And true. Truly, God loves those who are just. (Qur'an, 49:9)
We, the Muslims must be fair, even with those we dislike, and those who were not fair to us, as he said:
And let not the hatred of others make you avoid justice. Simply: it is closer to piety .... (Qur'an, 5:8)
Muohammad Prophet (PBUH) said:
(People remember the injustices of injustice will be dark on the ship day.)
And those who did not receive their rights in this life will get their day in court, as the Prophet Mohammad (PBUH) said:
(On the day of the court of law will be given to those to whom they should be (and injustice would be corrected )...}
Source: Islam Guide