Do not be naïve there are still people who feel what you are doing is wrong.
Prepare yourself by listing all the challenges you will face and all the benefits you will gain from the relationship.
And what better way to do that than to actually date someone who is a different race? If heaven is going to be a great multitude of people from every nation, tribe, people, and language worshiping together (Revelation 7:9), and if we are to be praying for God’s will to be done on earth as it is in heaven (Matthew ), then there should be some element of being with people different than us here in this lifetime.
There is a lot to be learned and gained from having deep cross-cultural relationships.
Moses was married to a Cushite (Ethiopian) woman (Numbers 12:1-16), and God was angry with Aaron and Miriam for criticizing that marriage.