Land of the Free Since 1865!

It just occurred to me that the ending of the United States national anthem should be amended to "...and the land of the free, since 1865."  Plus all those references and advertisements also need correcting to add the clarifier "...since 1865".  Because that is when the United States institution of legalized slavery ended.  Of course all that has transpired in the 154 years since has not been land of the free activities for black and other people of color in this land.