First, the Founders wrote our Documents in which they established those principles about law, freedom and justice for themselves and their posterity, essentially their descendants: WHO HAPPENED TO BE LARGELY White Christians/agnostics.
There. Fixed it for ya. America was founded using principles and morality based upon Christianity and the more general traditions of what we call Western Civilization. It doesn't follow that those principles are reserved to White Christians. The Founders preached tolerance for those other ideas because the American Tribe at the time was so ridiculously dominant that these small minorities spouting nonsense posed little threat.
The bill for establishing religious freedom, the principles of which had, to a certain degree, been enacted before, I had drawn in all the latitude of reason and right. It still met with opposition; but, with some mutilations in the preamble, it was finally passed; and a singular proposition proved that its protection of opinion was meant to be universal. Where the preamble declares, that coercion is a departure from the plan of the holy author of our religion, an amendment was proposed, by inserting the word "Jesus Christ," so that it should read, "a departure from the plan of Jesus Christ, the holy author of our religion;" the insertion was rejected by a great majority, in proof that they meant to comprehend, within the mantle of its protection, the Jew and the Gentile, the Christian and Mahometan, the Hindoo, and Infidel of every denomination. - Thomas Jefferson on the First Amendment
Both house and ground were vested and in trustees, expressly for the use of any preacher of any religious persuasion who might desire to say something to the people at Philadelphia; the design in building not being to accommodate any particular sect, but the inhabitants in general; so that even if the Mufti of Constantinople were to send a missionary to preach Mohammedanism to us, he would find a pulpit at his service. - Benjamin Franklin Autobiography
Of course the founder's didn't foresee a time when our Government would be actively using taxpayer dollars to deliberalty import adherents of religions whose principles are opposed to those of the American Tribe. Obviously those who don't accept our principles cannot become members of the American tribe- because the American tribe is BASED ENTIRELY on those principles. They are the binding force, the thing we have in common that makes us a tribe.
Having written that, I don't largely disagree with the propositional nation theory, but as there has to be a starting point for a reclamation and renewal, I believe tribal identification to be necessary at this point.
But what will be the basis of that identification? Will being "white" or being "Christian" be necessary for membership? We have a need to band together. But do we rally around the Gadsen or the Confederate flag?
Keep in mind, the White Left will want NOTHING to do with any group that thus identifies, so there's the benefit of them self sorting OUT.
You make the mistake of thinking the Left has morals or principles. They simply don't. They are all narcissistic sociopaths.
And narcissistic sociopaths want only one thing - power over others. If the way to get that is to become KKK leaders, they will do it . If they way to do it is to lie about their comrades in arms in winter soldier testimony, they will do it. If the way to do it is to slander a man over his taxes, they will do it. If the way to do it is to lie and tell you that you can keep you plan and doctor, then they will do it. If the way to do it is to run servers in your bathroom and blame You Tube videos, they will do it.
Anywhere there is a locus of power, they will swarm to it like moths.
The Democrats are and always have been the party of white supremacist racists with stars upon thars, and coloreds are their favorite people to seek control over. Forming a tribe based on race will most likely attract liberals. They react viscerally to the Confederate flag only because it allows them to virtue signal their moral superiority to the herd, while bullying and controlling the expression of people who disagree. If a preference cascade occurs and it appears the herd values whiteness, then they will gladly laud the Confederate flag as a symbol of virtue, and bully and control those who disagree.
The Gadsen, on the other hand will repel them. It means that bullying and controlling others is off the table, and it offers them nothing to satisfy tier narcissistic egos and craving to impose their will on others. ( Remember, "Live and Let live" is a philosophy that unfairly imposes on them the idea that "others aren't property") True conservatism, or Traditional Americanism, or whatever label you want for it - offers nothing to the narcissist
Organizing on racial lines poses significant danger in my opinion - to our principles, our ability to succeed, and probably to our immortal souls as well.