This story is about one effort, why do you make generalizations and assumptions. Jews are one of the most philanthropic groups in the world while being less than 1% of world population and about 2% of US population. Also, as we are so small in numbers, we only have ourselves to turn to, while the amazing US service people have many to support them, including the many patriotic US Jews!
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)
from the article: American Jews fund $2.2 million gym for Israel's Mossad