The preamble is clearly a part of the Constitution.
Should you dispute this as you insist on doing I offer you this challenge.
Locate a copy of the Constitution that does not contain the preamble. In that fashion, your misguided position may have some have merit. Please do not address me until you're able to respond to my challenge.
Now, learn to read.
I didn't say it wasn't part of the document. I said it was not part of the instrument. And it is no more part of the legal instrument than the list of signatories at the end. George Washington's signature is part of the document. It isn't part of the instrument. And neither is the Preamble. It is completely without legal effect of any kind.