The Preamble to the United States Constitution states:
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
The term “posterity” is defined as follow:
posterity /pŏ-stĕr′ĭ-tē/
noun
Future generations.
All of a person's descendants.
The race that proceeds from a progenitor; offspring to the furthest generation; the aggregate number of persons who are descended from an ancestor of a generation; descendants; -- contrasted with ancestry.
"the posterity of Abraham"
The term “posterity” specifically refers to a person’s descendants, future generations, and their race. The Founding Fathers were, naturally, all White, from European stock.
The United States of America were therefore founded for Whites. Not any other race.