There's a lot of ignorance about God even among those who claim to know him. But that doesn't disprove God. That doesn't disprove the facts that Jesus lived. Performed miracles. Died on the cross. Rose from the dead. That doesn't disprove the fact that those who accept Jesus as Savior and Lord receive the Holy Spirit when we are saved. And that, as we grow in Christ, the Spirit makes us into better people.