What is the difference between americanism and patriotism?

Patriotism is defined as the quality of having support for one's country. There is no specificity in the basic definition. Patriotism is generally quite subjective. While some patriots commit themselves to whatever government has been elected, other patriots are convinced, like Thomas Paine, that a true patriot should rigorously interrogate the worthiness of the sitting government and, if they find it lacking, should attempt to overthrow it.
Americanism is different to patriotism in the first, obvious instance because it relates only to Americans. Patriotism is a trait that occurs in every nation, as it is about feeling a sense of loyalty for your own nation, whatever it may be.
Americanism can be defined as allegiance or loyalty to the particular traditions of the United States. As such, it is different to patriotism because it is a variant of the usual accepted term, "patriotism," which excludes all other nations and exhibits a variety of American exclusionism, although, in actuality, Americanism is not truly any different to patriotism.