By doing that, Mr. Obama is attempting to change the meaning our Founding Fathers ascribed to the document.
The proclamation is fine until it the third paragraph (emphasis mine):
We learned that our Nation, built on the principles of freedom and equality, could not survive half-slave and half-free. We resolved that our daughters must have the same rights, the same chances, and the same freedom to pursue their dreams as our sons, and that if we are truly created equal, then the love we commit to one another must be equal as well. Americans with disabilities tore down legal and social barriers; disenfranchised farmworkers united to claim their rights to dignity, fairness, and a living wage;…..