The heresy of Americanism!

[Joshua]

I noticed there are plenty of die hard Republicans here who'll fight tooth and nail for the Constitution. 

So? ... That's not what Americanism is by a long shot. One can certainly be a supporter of the Republican Party and uphold the Constitution as one of the basis for any legitimate law in this country and still be a faithful Catholic. Americanism was/is primarily a movement to sever and divorce the Church from the affairs of the State.

In addition, it would seem that one of the underlying principles in your comment is that the U.S. Constitution is incompatible with Catholicism. Am I wrong in this deduction or, if not, where does the Constitution contradict Catholic teachings?