I believe "support our troops" is just another jingoistic slogan of this administration's intent to build unquestioning allegiance to the never ending "war on terror." This particular slogan brings with it the additional power of guilt for those that objected to the Viet Nam war and held the soldiers equally responsible with those making foreign policy. I see it as a not too subtle attack on the values of "liberals" and it has been immensely successful in silencing the opposition party, post 9/11.
I view "support the office of the president" as valid to the extent that the country's president fulfills the oath of office to defend the Constitution. My support of the office of this president is to impeach and remove George W. Bush for his failure to uphold his oath.
boatin, I don't envy you and have no advice to offer. Have you thought about bringing up religion for a change of subject? (Yes, I'm going to hell for that one).