US citizens are Americans because they want to be. No one is forcing them. If they wanted to be Israeli they could be in an instant---the US, unlike the former Soviet Union, lets anyone leave. And Israel would welcome them with open arms.If they're in America it's because THAT is where their loyalty is. Deal with it.
Magnitude 6.1 quake hits Panama-Colombia border (Reuters)
from the article: American Jews, embrace your dual loyalties