Time for embargoes and international sanctions against Israel, and Obama has to stand up an cut all military and financial aid even if this means he is only a one term president. The world has to do the right thing.
The relationship between Israel and the US is the classic one of the tail wagging the dog.
American money and arms allow Israel to act like a swaggering bully. They have shown by their behaviour in Gaza some months ago a deeply unattractive racism.
They know that whatever they do to the Palestinians, the US will find ways of doing nothing. Doing the right thing probably never enters their minds.