Whatever the answer is, we must understand that it can lie along a continuum, rather than accepting the false dilemma that interracial marriage must be wrong in either circumstances.
Any reasonably pious Christian will view the light of Scripture as the inerrant and perfect means by which we approach truth on any issue, and therefore he would presumably desire to know what the Bible has to say about the topic of interracial marriage.
This clearly shows the historic opinion of Americans on the matter.
Besides these laws, which show themselves to be of great weight when considering the propriety of interracial marriage, I would like to look at one specific example of an anti-miscegenation opinion.
Legislation and criminalization are not things which just appear among a people; they require a substantive consent of the populace (or apathy).