It is not escapism. When a person truly understands the teachings of Sanatana Dharma, he/she will go silent. A classic example of this is Ramana Maharshi. Such knowledgeable people will never care about history. They will only live in the present.
But everything should have an origin. So the thoughts found in Hinduism should have a source.
Now, even before the first building blocks of society were laid, the fear of the unknown had already created certain beliefs and dogmas in the mind of the humans. The pictures drawn by cavemen are a clear indication of this. These pictures depict the then unexplained phenomenon of nature. It influenced their mind to believe in a supernatural force.
So after hunting and eating, when the early human rested, he/she might have thought about the then unexplained natural phenomenon. This thought might have led to further enquiry into Who am I? We must remember here that the first stone tool of the Indian subcontinent is about two million years old.
Then human beings realized the power of fire and learned how to control it. This led to further development. Then early humans started to settle in a place and this led to the beginning of agriculture. In the earlier post, I had written about Mehrgarh, an agricultural settlement in 7000 BC.
The earliest known evidence of Hinduism is from Mohenjodaro and
But most theories and writings on the origin of Hinduism kicks tarts from Indus Valley Civilization.