I don’t think this is quite correct. https://constitution.congress.gov/browse/essay/artIII-S3-C2-... for further reading, but non citizens owe temporary allegiance to the United States while residing within US, and can be charged with treason.

What? do you think non-citizens don't pay taxes?

Non-citizens pay at least the same taxes as citizens, I recall there being some write offs that were only applicable to citizens so it's possible that non-citizens pay more in some cases.

Obviously non-citizens also pay the same sales taxes as citizens.

The only difference is you don't get a say in how your tax dollars are used. So much for "no taxation without representation".

Oh, and have to budget time for "random" delays at airports.

Immigrants in the US (including people who aren’t permanent residents) are considered residents for tax purposes and pay the same tax rate as citizens.

As a non-citizen permanent resident living in the US: how? Even the exit tax applies.