I take this document seriously but I know that most people don't. The part about "all men" is ignored and not believed by most Americans. "All" does not designate all white men, all american men, all christian men or all any kind of men. It just says all men. I believe they meant men to mean humans. Not just those with a penis.
The constitution which is the Law of the Land was written to protect those rights for all men. It has been subverted to the protection of all white males within the United States who are heterosexual, christian, have many possessions (money) and/or know somebody.
The dictionary says all means
The whole number of (used in referring to individuals or particulars, taken collectively): as in all students.
That is pretty clear but I find few that believe it or practice it. Especially the government which is us.
Happy fire cracker day. That and a day to wave flags is what it has become. The concept that we do not need a king is lost.
By the way "a king" is included in "all men".