Thomas, the best way to look at it for you, and in fact I use this example myself is the trinity concept of father, son and holy spirit. They are not three separate entities, but one entity, and yet one aspect(the son) can manifest and incarnate on Earth and commune with the other aspect the father and live in the holy spirit. Hence Jesus says, “I and and my father are one” Similarly, Hinduism says we are god, soul and spirit at the same time. One aspect(soul) can manifest and incarnate on earth and commune with the other aspect god and live in spirit.
We Hindus are not arrogant that we proclaim,“I am god, it is only me, and there is no other god other than me” Rather we proclaim oneness with god. We are saying pretty much what Jesus is saying, “I and my father are one” However, what you need to realise that Jesus is not the only son, we are all the sons of god. Jesus is a soul, just like you and I are souls. But Jesus is a much more evolved soul.
Jesus never claimed he was the only son of god. In fact, he did suggest when he quoted “Ye are all gods” that we are all gods. He did suggest to his disciples that the glory that he has, his disciples can as well. This is exactly what Hinduism teaches, that we are all gods and all highly evolved spiritual beings that have incarnated here such as Krishna, Buddha, Mahavira have all said that the glory they have, we too can have.
You must realise that you too are a god and start your sadhana(Yoga practice - yama, niyama, asana, pranayama, pratyhara, dharana, dhyana) to actualise this. Then you too will have glory that Jesus, Buddha and Mahavira etc had. You too will proclaim like they did “I and my father are one”, “I am that I am”
You must respect the fact that the divine teachings were given all over the world, and not just in Jerusalem and by Jesus. The teachings that Jesus gave, were given many times to the Hindus through the ages. We have records of thousands of masters going back 10,000 years. Abandon this arrogance that Jesus is the only one and Jerusalem the only place in the world that god revealed the divine teachings to.