Consider. At the time of the signing of the Declaration and the acceptance of the Constitution, only about six percent of the general public could vote.
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We had similar laws to those of England in that propertied gentry could vote. .Even twenty-five years later, only about twenty-five percent of the populace could vote. We were rather specific in defining what rendered a person eligible to vote. Blacks and Indians were accorded three-fifths of a person, but only for the purpose of defining the number of delegates to which a state was entitled. They didn't have three-fifths of any rights. That is the plan of our forefathers.
We actually had to have a war in order to establish the right to vote for a large part of the population. Even after a war, it didn't accomplish the access to the vote. We had poll taxes, poll tests, and reading requirements that seemed to apply only to some people, same as voter IDs do now.
Yet, it was another sixty years before women had universal suffrage, 1920.
In order to get the right to vote, we had wars, Constitutional amendments, civil rights laws (more than one) and voter's rights acts. At every step, there was opposition. We still don't have an Equal Rights Amendment, as though it were somehow a problem to acknowledge equal privileges to women.
None of this has come easy, and at every step there is always someone standing in opposition who says that the protests, wars, amendments, laws, acts, and anything else is inappropriate and unamerican.
Fortunately, Jefferson and Madison, along with some others, knew it would be this way. They provided the means to change, but even they had been unable to change the minds of their adversaries about some of these issues. They indicated that they knew we would change it, but they also knew it would be over great resistance.
When we refused to reject slavery in the Declaration, I think it is apparent that Jefferson would have knelt in protest, except that we didn't have a national anthem for another 160 years.