I didn’t try to make the declaration about slavery, I said it was a reason why slave results could be justified. It is ABOUT human freedom, slaves re human.
It is not about "human freedom." It is about asserting a right to be independent from a Union.
People subsequently claimed it was about "human freedom", and they base this entirely on those five words from Jefferson, but the document was not in fact about this.
People have made the document into a claim about "human freedom", but this is not at all the reason for it's existence, and is an example of "creative interpretation" to twist out a meaning that wasn't intended by the signatories.