An armed invader is subject to being shot on sight in a historical context.
Understood. You and I are on the same page when it comes to what constitutes an invasion of our borders. I am not now nor will I ever advocate for illegal aliens and hope that President Trump goes through on his promise to mass deport.
That being said, one of the founding principles enshrined in the Declaration is that all men are created equal and God has endowed them with certain rights.
We can affirm their rights as a person (as the court should, if it is being true to the original intent of our founders) while simultaneously wanting to remove from them the privilege of being in our country.
Legally, these are two different issues.