am not certain why you think the principle is invalidated 'cause o' the hypocrisy of the author. a father who never brushes his teeth teaches his children to brush twice a day and floss regular. is the dad's message false? how 'bout michael vick doing humane society commercials 'bout treatment o' pets? is false that dogs should be treated humanely? hypocrisy of the messenger does not invalidate the message.
the fact that principles espoused in the declaration is more valid now than it were when written makes principles false?
HA! Good Fun!
ps "We hold these truths to be self-evident, that all men are created equal," sounds better than, "We hold these truths to be self-evident, that all white men are created equal". just doesn't roll off the tongue as well.
Look were those beautiful words led us, apologetics for slavery, the French revolution and subsequent reign of terror, I think they actually coined that term.