If you want to say that American cuisine is everything the old and new immigrants bring with them, this is the end of the discussion. There is nothing to talk about since you just steal every cuisine on earth because some of their people come to the U.S.
What we usually defined as American cuisine are traditional American dishes from the early immigrants, which is a mixture of German and English dishes with modifications, and southern American dishes(like soul food). Modern American cuisine takes notes from other cuisines as well, but it shouldn't change the core characteristics.
And yes, beyond a handful of dishes, I dislike most of what American cuisine has to offer. I dislike English cuisine as well if that make you feel better.
