Why do most Israeli Jews lean right while most American Jews lean left ?

Israeli Jews and American Jews represent more than 80% of world jewry.

1. Why do most Israeli Jews lean right while most American Jews lean left ?

2. How different are Israeli Jews and American Jews ?

3. Are they still talking to each other ? Do they even understand each other ?

4. What do American Jews want ?

5. Is there a need to reconcile the differences and heal the rift ? How ?