Jesus was more than a good man or a preacher and he was a Savior but Jesus was not God the Creator or God the Savior. That was not who Jesus ever claimed to be. Rather this was what was decided upon that Jesus was at the Council of Nicaea, and sadly, most Christians have believed it ever since.
Matthew 7:13-14 Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. But small is the gate and narrow the road that leads to life, and only a few find it.
That was written and applied only to when Christianity was the narrow way, when there were very few Christians in the first centuries, but Christianity is no longer the narrow way because about 30% of the world population is now Christians. Given that Christianity is the largest religion in the world, Christianity is now "the wide is the gate and broad is the road that leads to destruction, and many enter through it."
Just as Christianity was the small gate and the narrow road that led to eternal life in the first centuries when there were few Christians, the Baha'i Faith is now the small gate and the narrow road that leads to eternal life in the first centuries since its inception.
Many or most people do not believe in the Baha’i Faith because it is the new religion at the narrow gate. Below are the primary reasons why most people do not believe in a new religion.
The religion at the narrow gate is the religion God wants us to find and follow, and it is the gate that leads to eternal life. But it is not that easy for most people to find this gate because most people are steeped in religious tradition or attached to what they already believe. If they do not have a religion, most people are suspicious of the new religion and the new Messenger. If they are atheists they do not like the idea of Messengers of God or they think they are all phonies. If they are irreligious they have become fatigued by the already established religions and thus just find it more annoying that a new one has popped up.
It is difficult to get through the narrow gate because one has to be willing to give up all their preconceived ideas, have an open mind, and think for themselves. Most people do not normally embark upon such a journey. They go through the wide gate, the easy one to get through – their own religious tradition or their own preconceived ideas about God or no god. They follow the broad road that is easiest for them to travel.
The Bible mentions Jesus saying he was God. In John 8:58 Jesus said before Abraham was I am.