In Him there is neither Jew nor Greek, neither slave nor free, neither male nor female. This means that God shows no preferences on the basis of racial, social class, or gender distinctions. It is usually these characteristics that defines a certain group. Let me say here that neither your definition, nor mine is important here. What we want to do is define multiculturalism the way it is defined by the secular world.
Situational ethics is another outgrowth of relativism.
Of course, this is diametrically opposed to what Christians believe. God has set up an absolute standard of right and wrong that transcends each and every so- called cultural expression. Since you are a Christian, if my foundational values differ from yours, I'd better be mighty concerned. It might be helpful if you would clearly state your foundational values and perhaps state what you think mine are. Multiculturalism applies Relativism to culture - at its deepest level, its intellectual premise is cultural relativism.