One thing I've learned as I've grown to understand spiritual things more in my Christan walk, is no amount of evidence can persuade someone to accept the gospel.
Time after time, the Bible credits God's grace and the work of the Holy Spirit with the fact that people believed the gospel. You can show a person 100% of the evidence and proof they need to believe that what the Bible says about Jesus is true, but that is not enough to see them saved.
A heart change is mandatory, and only God can do that.
That's why we plant the seeds, but God gives the increase.
That being said, that is why you should not waste time arguing for Creation or the Existence of God with an atheist. Those topics are just rabbit trails that the atheist will want to drag you down. Instead, just be straight forward about the gospel message: We are guilty sinners and God, out of mercy, sent Christ to take the place of sinners, and by repenting of sin and putting our trust/faith in Christ, we can be saved.
This sermon is amazing, check it out:
Why do we believe, while others reject? Did you just receive a more compelling set of evidences than someone else? Are you smarter than someone else? What makes you differ from unbelievers?
Why We Believe While Others Reject - John MacArthur (1 Corinthians 1:18-2:16) [CC] - YouTube