[BuffaloJack]

Not swearing allegiance and declaring that you will defend this country should be immediate cause for deportation.

[proud American in Canada]

Yes, it should. Otherwise the oath means nothing.

[Mouton]

Actuaolly since they won’t take such an oath that qualifies them as an invading army and should be shot on the spot as spies since they are out of uniform.

[equaviator]

“Not swearing allegiance and declaring that you will defend this country should be immediate cause for deportation.”

...Because the omission of that part of the oath practically makes it constitutional for them to become enemies of the state.