I'm not so sure Jews are so "alone" in maintaining the old New Deal coalition. Many other groups (Catholics, urban ethnics, union members, Blacks) are just as Democrat as ever.
The article defines liberalism primarily by economic positions. I would define it by moral/social positions. Decent people may disagree about economic policies, but not on the baseline standards of G-d for being civilized human beings.
Typical... something happens that you don’t like and it’s la la la la I can’t hear you.
Call them the Quorgians or what have you, they are a formidable voting force in the land.
As for highly religious Jews they already tend to go along with Republicans. Why barnstorm them for what they are doing now.