I will refer you to a publication. It is by Professor Alan Dershowitz. It is called "The Vanishing American Jew".
I also became aware while in Toronto of an American expatriate. He was Rabbi Feinberg. Abraham L Feinberg born in Ohio. Hardly anyone in that politically correct city, dare argue with the Rabbi. He believed integration would be the death of the Jewish diaspora.
Thank you for your liberal views- laughs.
I married a convert.... It cycles in and out.