I know a wealthy Jew who started with one cab and took turns with his brother driving it. They now own a Transportation company. He is one of the most generous citizens in my home town. Many of our traditions would not be possible without his sponsorship.
I know what you mean. Frankly I don’t know where this thing came from.
I grew up in a city with many Jews. As a group, they were encouraging, friendly and took education as paramount. I would never leave a Jewish home hungry either. Why they vote 80% Democrat when their values (and even their long ago home, Israel) is trashed within that party, is a mystery that I will take to my grave.