And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
John 3:17 For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
John 3:18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
John 3:19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil.
John 3:20 For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved.
John 3:21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
John 3:22 After these things came Jesus and his disciples into the land of Judaea; and there he tarried with them, and baptized.
John 3:23 And John also was baptizing in Aenon near to Salim, because there was much water there: and they came, and were baptized.
The verse centers on "world", "condemn", "light", "darkness", "condemnation", "come", "loved", and "rather". It is saying that the contrast between light and darkness marks a real divide in how people respond to God's work.
The nearby context moves from verse 18's "He that believeth on him is not..." into verse 22's "After these things came Jesus and his...", so "world" and "condemn" belong inside that flow. In Jesus Explains God's Saving Love, the local focus is new birth, eternal life, belief and unbelief, and God's saving love.
A plain takeaway is to answer the verse's own emphasis on "world" and "condemn" with trust shaped by these words, not by a vague optimism outside the passage.