In this passage in John, light is associated with Jesus and with the love of God for the entire world. Light is explicitly linked with a capacious love that was present from the beginning of creation and includes all of creation. It is therefore opposed to racism of any kind.
The capacious and eternal love of God is neither a verifiable fact nor an opinion, but a theological truth-claim, staked on trust in Jesus as a credible witness. Christians who believe in such love should be wary of both the politics of condemnation and the politics of purity.
