Look, in my opinion, the reason that no one in the US is seriously calling for a withdrawl from Saudi soil, is not onlywere we invited by the government of the country, the objection to our presence is one most americans can not comprehend. You see, many people who live in the US are not of the same homogenious background, in fact we are taught (some better than others) that it is wrong of us to deny anyone who may seek it the chance for a new life here. So you see, to those of us who welcome others into our cities and towns, we find the notion of a whole country as "too good" for an "infidel" to sully with his footprint as a noxious idea. Much like the ethnic hatreds that tore apart Bosnia, no one over here was saying "yeah, that is a fine ideal, to live in a 'pure' nation" we were of course horrified, and look at such an idea as not civilized.
I am sorry if it offends you, but the argument that we can not walk the dirt in a certain country because it has two holy places is not going to gain any traction, because it is the sort of idea we have been taught is not a reasonable position to take.
My view is the product of an entirely west coast liberal family upbringing, so I imagine that many in this country (most according to the last election) would have even less understanding for the whole concept of our unsuitability to set foot in that part of the world.
Bernard