IS TRADITIONAL HISTORICAL CHRONOLOGY RELIABLE?

It's interesting how we would sit in the history class, unperturbed, while we're being fed with endless narratives about events that happened thousands of years before our own era, and we would not even for once ask the professor the hard question about the accuracy of traditional historical chronology.

The hard question we fail to ask is: if the ancient people did not write their own history and if modern men were not alive in the ancient times, how then do modern men feel comfortable learning and teaching about historical events they neither witnessed nor experienced?

The world history that modern men teach to one another today was formulated based on the historical chronology that was developed by Scaliger and Pentavius around 16th Century AD. This traditional historical chronology is popularly known as the Scaligerian Chronology.

The Scaligerian chronologists, mostly Jesuits, relied solely on the star catalogue of Ptolemy Almagest for dating historical epochs. Ptolemy Almagest was considered the main source of astronomical knowledge and planetary theory before the time of Corpenicus. And since advanced knowledge of astronomy was required for dating historical epochs, the star catalogue of Ptolemy Almagest became a highly sought after astronomical manual in the Scaligerian era (15th-17th Century AD). 

However, it turns out that the star catalogue of Almagest, upon which traditional historical chronology was formulated, had been been tampered with and edited by Scaligerian chronologists around 17th Century AD to promote their Jesuit world view and to compress world history into the Biblical timeline.

Conscientious scholars and moral philosophers, around the world,  like: Isaac Newton,  Nikolia Morozov, Wilhelm Kammeyer, Robert Baldauf, Peter Krekshin, Fomenko, and Walter Williams had sharply criticized to no avail Scaligerian chronologists for falsifying traditional historical chronology.  

So, if the traditional historical chronology is known to be false, why is it that world history as we know it today is still being taught based on the same falsified chronology?