What do you mean by that? Isn’t it the purpose of our military to defend the United States from invasion? Or is it the US military only to be used to defend other nation’s borders or wage endless wars where we spend trillions of dollars only to lose?
I guess America isn’t ready for people like me. First, I want our border secured by the military. Build the wall and kill anyone illegally crossing the border at a non-port of entry. That will stop the in the invasion very quickly. Then we need an Operation Wetback II, where all illegal aliens are forcibly deported. The military would be central to that operation. To hell with the Posse Comitatus Act and any of its misinterpretations. It is not constitutional. It limits expressed powers granted in the US Constitution. The US military should not be used against American citizens. It should be used to repel and dispose of invaders. This isn’t rocket science. Leave it to lawyers and politicians to ignore common sense and ignore the constitution.
The US military may not be used against the Texas National Guard which would be protecting Texas from foreign invasion. This will take the issue to a whole other level.
Using the US military to protect our border from the illegal alien invasion would be constitutionally permissible in my view, even if the “invasion” is not a armed invasion. As you note, lawyers, politicians, and a whole lot more of anti-American people have said the military would not be constitutionally permissible. This has not been tested yet, but a state protecting itself .... moves it in that direction.