There is a lot of god-talk in the world. Theology (literally, a word about god) is a fascinating subject and there is much room for philosophical and theoretical thinking about god as a concept or idea.
There is also a lot of Jesus-talk in the world. People are fascinated by this historical figure and questions about him often show up in all kinds of cultural expressions (news, movies, music, etc.).
But Christianity isn't just about an abstract concept of God, nor is it simply about the historical questions about Jesus' origin and identity.