They leave out the fact that By the very early 1800's every state North of Delaware had outlawed slavery.
It was the Southern States that were the Slave Holders.
The Founders intended for it to be a state issue in order to keep the nation together. The Southern States would never have ratified a Consitution otherwise. It worked until 1861.
Even after the Civil War, Every State STILL had laws against sodomy, That was after the 13th and 14th amendments mind you.
So tell me, Every State had sodomy laws well into the mid-1900's, then all of the sudden the pot-heads of the 1960's hit, are you telling me that the 60's radicals are more enlightened than our nation until the 60's?