Everyone knows that all men are not equal. This is obvious, whether we were created or evolved. The Constitution provides that all are entitled to equal protection of the law, which is all we can do. This is the concept embodied in the Declaration.
The "creator" mentioned in the Declaration is "nature and nature's god," from Jefferson's expression in the first sentence. That is, quite likely, not the supernatural deity to which you refer. Historians usually consider it to be an expression of deism, not theism. The document as a whole is probably ambiguous. In any event, the Declaration isn't law, it isn't part of the Constitution, and it doesn't outlaw atheism, or any other belief about religion. The quote I gave you before, from Article 6 of the Constitution, specifically contradicts what you are now claiming.
You may say that the two documents are not connected, but without the assumptions of the D.of I. the Constitution would not have come about. Is it not evident that the Declaration is the real preamble to the Constitution.
Look at it any way you wish. They are separate documents, drafted by separate groups of men (with some overlap), but separated by nearly a dozen years. The Constitution is the supreme law of the land. It does not include the Declaration.