The remnants of what they gave us still provide us with (though to a great measure diminished) a certain measure of political and social freedom. I do believe in what has been termed "American Exceptionalism." This is not because I see us as some special people with superior minds and abilities. The Scripture tells us we are all under sin and depraved in our nature.
(Rom 3:10 As it is written, There is none righteous, no, not one:
Rom 3:11 There is none that understandeth, there is none that seeketh after God.
Rom 3:12 They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one.)
Our exceptionalism lies at the foundation of our laws and forms of government. These ideas were formed in the minds of men who were influenced by the Gospel of Jesus Christ and who were learned in the Scripture. It provided them with an understanding of freedom that had alluded previous governments of history. Similar concepts of republican government had been tried before with some success, but limited in both time and effect. But here, the principles came into effect with a people whose hearts had been prepared to not only live under them, but understand them and cherish them.
Jdg_17:6 In those days there was no king in Israel, but every man did that which was right in his own eyes.
Pro_12:15 The way of a fool is right in his own eyes: but he that hearkeneth unto counsel is wise.
Pro_21:2 Every way of a man is right in his own eyes: but the LORD pondereth the hearts.