Holy See on Racism
"Without a Change of Heart, Laws Are Not Effective"

In all its manifestations, racism makes the false claim that some human beings have less dignity and value than others; it thus infringes upon their fundamental equality as God's children and it leads to the violation of the human rights of individuals and of entire groups of persons.

This equality is proper to the ratio of charity, not to that of justice--and yet, the prohibition of certain actions falls under the virtue of justice, and not just charity. Where does the evil with regard to racism arise? In the intellect or the will? Is it possible to be a good-willed racist? Can the intellectual error of racism be separated from the moral error? Can someone believe sincerely that some people should be treated differently from others because they are somehow inferior? Or that they should be slaves -- but still be accorded basic protections under justice and the law?