I can see the sense within which you see every country as having a mixed economy. Note, however, that while objectives of two countries can be similar, they can be undergirded by different sets of philosophies or mechanisms.
Each of the USA and countries of Western Europe have what can be referred to as social security systems. While the U.S. version is rooted in capitalism, however, the Western Europe version is rooted in socialism. In your view, the goals or objectives are the same. In my view, the mechanisms or philosophies are widely different, with outcome they do not reflect the same ideology.
Perhaps even more importantly, while pursuit of innovation is central to well functioning of a capitalist system, this is not the case in context of a socialist philosophy. This is well documented in research studies of the two sets of countries, particularly in context of venture capital activity, regulations, and attitudes towards risk.
While one may argue that the capitalist philosophy creates some complexities, they are complexities introduced by an hedonistic interpretation of capitalism. Prof. Joseph Stiglitz, a Nobel Laureate in Economics has a book out which attacks the hedonistic interpretation of capitalism and preaches what research in Finance always has preached, which is what can be referred to as Pareto optimal Capitalism.
With my clarifications in mind, I hope that you are able to arrive at an improved appreciation of my post.
I appreciate your taking the time to pen a note.