So. Many. Commas

Heedless to the warnings of wise men like Daniel Webster, since the turn of the century increasing numbers of Americans have been turning their backs on the rational, personal God, and by extension, on the source of their humanity, and of their unalienable rights. Like yesterday's pagans during the declining days of the Greco-Roman civilization, they are today either practical atheists aimlessly wandering in a spiritual desert of nihilism or spellbound, are desperately trying to find meaning and purpose from the mesmerizing ideologies that arose out of the heart of Christendom, during the time of the Renaissance.