Yes, but the issue is deeper. It isn't just that the wool has pulled over our eyes. We actively help.
Am sure that a lot of history has been lost. But there is still lots available. Herodutus, Philo, Plato, fragment from Pythagoras, Thales etc….
All of the extant pre-Nicea writings from the church fathers can be had for less than 200usd.
But the most neglected and poorly interpreted work is Plato's Timmaeus. That shit will wake your ass up if you engage with it properly.