Want a constitution? Go for it.
I have no problem with a group of people writing a contract, or "constitution", which establishes how they will run their own society. That is just a form of self-determination.
However, I have a big problem with them deciding that their contract will apply to people who don't agree to it, and even to those who are not yet born. In other words, coercively forcing people to become part of their society regardless of their wishes. This is a violation of self-determination.
I no more agreed to live under a government established by the US Constitution than I agreed to live under a government established by any other people, anywhere else on Earth, at any other time in history. It matters not where I happen to have been born, where I live, or what year this may be. And it is absolutely wrong for anyone to demand otherwise.
I have signed the one "contract" I agree to live by.
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