Does the soldier's oath apply just while you're serving?

I'm retired and do you think for a minute that any sitting president has my undying allegiance for life? Get real. You think all vets should abide by the constitution when our own sitting president doesn't? Be an Obama lover all you want, the rest of us aren't life long sheeple because we served in the military and I for one have enough sense to make up my own mind and not be told what to do by someone who just happens to have had enough idiots vote him into office as president.