The problem is that it's wrong. All men are not created / did not come into existence equal. Intelligence, genetic risk factors for disease, appearance, etc are all examples of inequalities in the creation or existence of man. It is clear from the text that 'equal' means more than 'equally endowed with unalienable rights'. There are interpretations that are more correct, sure, but these interpretations aren't the natural interpretation of that piece of text, and it's perfectly reasonable to kinesthetically react to that natural interpretation.