It’s a pardonable oversimplification: celebrating “the” day the Continental Congress held some truths to be self-evident. Yes, they were all privileged white males. Yes, some lived off the toil of slaves. But their concept of public service was not based on pandering to bigotry and whoring for campaign contributions.
(BTW, the [Menu] button atop the vertical black bar reveals the widgets.)
Knowingly or not, the signers of the Declaration of Independence started something big, still far from finished, and now critically endangered. They started the long hard slog to build a nation with liberty and justice for all.