And thereby, anyone describing them as such, is not only a liar should they continue to do so after being so corrected, but is unworthy of calling themselves an American, since the requirement for a conviction of treason as described in the US constitution itself was never met:
Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.-- U.S. Constitution, Article 3, Section 3