Read it here, for the first time: “ . . . by Authority of the good People of these Colonies, solemnly publish and declare, That these United Colonies are, and of Right ought to be Free and Independent States . . .”
It is not saying their is a right to independence. It is saying after those long trains of usurpations and abuses that it is the right thing for the colonies, through the authority of the people, to be free and independent states.
Right-morally good, justified, or acceptable
Natural Right-a right considered to be conferred by natural law.
But I suspect you know and understand the difference and are just using your same tactic of obfuscation and misdirection.