Christians need not fear such things, the world will hate the message of Christ. Now, atheists may not always be responding to the true gospel message. They could be responding to many who claim Christ that are more antagonistic in their methodology. Regardless, the scriptures say clearly…
14:1 The fool says in his heart, “There is no God.”
They are corrupt, they do abominable deeds,
there is none who does good.
2 The Lord looks down from heaven on the children of man,
to see if there are any who understand,
who seek after God.
3 They have all turned aside; together they have become corrupt;
there is none who does good,
not even one.
This is the Psalm that Paul quotes in Romans 3. When you combine that with Romans 1:18, we understand that sin and Satan blind the eyes of the lost and unrighteousness suppresses the truth in us that says there is a God. So, there is a sense that we should not revile atheists because they are sinners just like all of us were (who are now in Christ) and apart from God’s grace, we could have lingered long enough in our darkness for truth to be suppressed so far that we too could have said, and even promoted, that there is no God.
For God, who said, “Let light shine out of darkness,” has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ.
2 Corinthians 4:6