Today many scholars recognize that Jesus Christ is a real character in history, but they do not see Him as the Son of God or Creator of the heavens and the earth, rather, they see Him as a simple jewish prophet. They believe that Jesus came and existed for the first time and that He died but was not resurrected.
The Bible does not speak of Jesus as a great prophet (although He was), rather speaks to us as the Son of God who created all things in the beginning. They also see Jesus simply as a man who performed many miracles. In short, all these things have not been denied, and if they have been, have been very little. The jews themselves knew that Jesus performed miracles, but they did not believe that He was the Son of God.
Something we must understand is that Jesus is more important or more transcendental than everything described above. John gives us a lot of clarity of who Jesus really is, he begins his first chapter in the following way: