Of course, I understand, that's what you wish it said, because that might support your pro-Confederate ideology.
And to support your argument, you can produce exactly one word, quoted from the Declaration: "should", which you interpret to mean "should not", and therefore nothing else the Declaration actually says matters to you, does it?
But outside your Lost Cause pro-Confederate fantasies, the actual declaration says something entirely different, the core of which is this:
And that's why the Confederacy was illegitimate from Day One of its conception, all your fantasies to the contrary notwithstanding.
It does say that, whether it supports "pro-confederate ideology" or not. I don't acknowledge the truth of things because it might support my view, I acknowledge the truth of things because they are true.
And to support your argument, you can produce exactly one word, quoted from the Declaration: "should", which you interpret to mean "should not", and therefore nothing else the Declaration actually says matters to you, does it?
I didn't create the English language, but in whatever language we use, the concept of "should", is not the concept of "Shall."
You keep trying to substitute "Shall", as in a command, for "should", which is a suggestion.
Either learn your English, or learn some honesty.