Yes, it’s part of a biblical worldview. See Romans 1 and Paul preaching in Acts 17. It reflects the fact that we as humans best represent humanity when we have knowledge of God and reflect his image by following Him. It is an exclusivity claim. But anyone can join 
But the image of God is also the basis for morality in our culture and for treating others as having value. So you’re basing your criticism of me for saying people are rejecting God using a worldview founded by the Bible.
If I value you, I have to tell you the truth. I do not want anyone to be dehumanized by themselves or others.