[bronx2]

Do you have estimates of the percent of those calling themselves Jews who are observant and believing Jews and what percent are mere cultural. I have met far more of the latter for whom Judaism was akin to being Russian or French, a nationalistic idea, as opposed to being a religious type.

[jjotto]

About 10-20% of Jews are traditionally observant, with the percentage increasing. The question really doesn’t matter as those ‘cultural Jews’ don’t have Jewish descendants after a few generations unless someone returns to traditional observance. Cultural Jews inter-marry at a much greater than 50% rate.