Want to End the Violence in Gaza? Boycott Israel.

 It's time. Long past time. The best strategy to end the increasingly bloody occupation is for Israel to become the target of the kind of global movement that put an end to apartheid in South Africa.

In July 2005 a huge coalition of Palestinian groups laid out plans to do just that. They called on "people of conscience all over the world to impose broad boycotts and implement divestment initiatives against Israel similar to those applied to South Africa in the apartheid era." The campaign Boycott, Divestment and Sanctions -- BDS for short -- was born.

Every day that Israel pounds Gaza brings more converts to the BDS cause, and talk of cease-fires is doing little to slow the momentum. Support is even emerging among Israeli Jews. In the midst of the assault roughly 500 Israelis, dozens of them well-known artists and scholars, sent a letter to foreign ambassadors stationed in Israel. It calls for "the adoption of immediate restrictive measures and sanctions" and draws a clear parallel with the antiapartheid struggle. "The boycott on South Africa was effective, but Israel is handled with kid gloves.… This international backing must stop."

Yet even in the face of these clear calls, many of us still can't go there. The reasons are complex, emotional and understandable. And they simply aren't good enough. Economic sanctions are the most effective tools in the nonviolent arsenal. Surrendering them verges on active complicity. Here are the top four objections to the BDS strategy, followed by counterarguments.

1. Punitive measures will alienate rather than persuade Israelis. The world has tried what used to be called "constructive engagement." It has failed utterly. Since 2006 Israel has been steadily escalating its criminality: expanding settlements, launching an outrageous war against Lebanon and imposing collective punishment on Gaza through the brutal blockade. Despite this escalation, Israel has not faced punitive measures -- quite the opposite. The weapons and $3 billion in annual aid that the US sends to Israel is only the beginning. Throughout this key period, Israel has enjoyed a dramatic improvement in its diplomatic, cultural and trade relations with a variety of other allies. For instance, in 2007 Israel became the first non–Latin American country to sign a free-trade deal with Mercosur. In the first nine months of 2008, Israeli exports to Canada went up 45 percent. A new trade deal with the European Union is set to double Israel's exports of processed food. And on December 8, European ministers "upgraded" the EU-Israel Association Agreement, a reward long sought by Jerusalem. 

It is in this context that Israeli leaders started their latest war: confident they would face no meaningful costs. It is remarkable that over seven days of wartime trading, the Tel Aviv Stock Exchange's flagship index actually went up 10.7 percent. When carrots don't work, sticks are needed.

2. Israel is not South Africa. Of course it isn't. The relevance of the South African model is that it proves that BDS tactics can be effective when weaker measures (protests, petitions, back-room lobbying) have failed. And there are indeed deeply distressing echoes of South African apartheid in the occupied territories: the color-coded IDs and travel permits, the bulldozed homes and forced displacement, the settler-only roads. Ronnie Kasrils, a prominent South African politician, said that the architecture of segregation that he saw in the West Bank and Gaza was "infinitely worse than apartheid." That was in 2007, before Israel began its full-scale war against the open-air prison that is Gaza.

3. Why single out Israel when the United States, Britain and other Western countries do the same things in Iraq and Afghanistan? Boycott is not a dogma; it is a tactic. The reason the BDS strategy should be tried against Israel is practical: in a country so small and trade-dependent, it could actually work.