Given the diversity of 50+ states, find me one that values human life of fellow state members with centrally provided healthcare so they're not left to choose between bankruptcy or life, views education as a public good and access to it has a low barrier to access it, doesn't have for-profit prisons or has a network of public transport infrastructure that relies on a system of trains or trams?
My country had wars with it's neighbours from single digit centuries. Comparing differences in Europe to the US states is like comparing McDonald's differences with local cuisine refined over centuries.
With so many differences where can I find social values that are comfortable with pederasty as in ancient Greece?
Knowledge is almost free nowadays. Reading history of countries offers a fascinating perspective of how we got here. For better or worse, the US is pretty homogenous in its value system, religious beliefs, political beliefs and language.