We support defending the Constitution, and as it calls for, defending our states from invasion.
Don't you?
U.S. Constitution Article 4 Section 4:"The United States shall guarantee to every State in this Union a Republican Form of Government,
and shall protect each of them against Invasion;"
Invasion: \In*va"sion\, n. [L. invasio: cf. F. invasion. See Invade.] [1913 Webster]
1. The act of invading; the act of encroaching upon the rights or possessions of another; encroachment; trespass.
Invasion of British rock; invasion of fire ants; invasion of Italian shoes; invasion of killer bees; invasion of bottled water; invasion of migrant laborers.....
The Constitution uses "invasion" to mean invasion by foreign armies, not Russian caviar or anything else.
Immigration itself was considered a State function at the time that Amendment was adopted. Not until later did an Activist Supreme Court rule the the Federal government had immigration authority.
You don't support the Constituition as "originally intended", you support your own private distortion of the Constitution. It was thinking like yours that resulted in Roe v. Wade.
By the way, which third party are you supporting now, The Constitution Party?