What people don’t seem to understand is that the US is large enough and populous enough that it has developed two brains, or two main philosophical cultures, and thus would be suited better if we were to divide the US into states. This would be like trying to classify Europe (or more accurately the EU) in one MBTI category, and if I were to do that, I would class them as ESFP. Hopefully I made my point, though I’m serious on what I would classify Europe as in accord to my bias.
I don't see how the citizens of the US are getting ESTJ without any consideration to other factors, I'm guessing others are judging the US based off of it's foreign policy and are painting a picture with that, the people of the US, obviously diverse, but tend to favor F's over T's, and, P's over J's, this I am quite confident in. This obviously differs from state to state, but the more populous states (thus the majority of the US) are ESFP. California holds about 12% of the US population, and ESTJ is almost one of the furthest mbti scores one could come up with for Ca.
I would break down the US it would be West and East coast (not including Alaska) ESFP with a little ENFP, South ESTJ, Mid West ISTJ
In regards to England and Sweden, (perhaps I'm suffering from transnational misconceptions myself) I don't see how those two are ISTJ, nothing in those two countries in regards to it's citizens suggest any traditional or authority respecting schools of thought that I can observe. I would denote those two with P's at least, though I don’t claim authority in this regard.