People often point out how the US is an outlier in religiosity as a western, wealthy nation, but I've always wondered how it would break down if you corrected f

People often point out how the US is an outlier in religiosity as a western, wealthy nation, but I've always wondered how it would break down if you corrected for its diversity. For example, there are a lot of first and second generation Italian immigrants in the US, how does that population compare to Italy? There are a lot of Mexican immigrants, how does that population compare to Mexico? The older groups from protestant countries, how do they compare to Germany or the UK, and so on.