It probably does not. That’s why everyone is counted whether a citizen or not.
Most Americans are pretty ignorant of immigration issues. So here’s a primer.
The US gets about one million of legal immigrants evey year. They are issued green cards and are considered LPRs (legal permanent residents) with same rights as citizens except they cannot vote.
After 5 years they can apply for citizenship. So doing some simple math we see thay at any point in time ther’s at least 5 million non citizens in the US.
Then there are refugees and,the majority, illegal immigrants (undocummented, whatever the PC term du jour is).
The current hoopla is caused by illegal immigrant right activists and various special interest groups.
Thank you anyway for the intro to constitutional law.