JERUSALEM — IF Secretary of State John Kerry’s attempts to revive talks between Israel and the Palestinian Authority fail because of Israel’s continuing construction of illegal settlements, the Israeli government is likely to face an international boycott “on steroids,” as Mr. Kerry warned last August.

These days, Israel seems as terrified by the “exponential” growth of the Palestinian-led Boycott, Divestment and Sanctions (or B.D.S.) movement as it is by Iran’s rising clout in the region. Last June, Prime Minister Benjamin Netanyahu effectively declared B.D.S. a strategic threat. Calling it the “delegitimization” movement, he assigned the overall responsibility for fighting it to his Strategic Affairs Ministry. But B.D.S. doesn’t pose an existential threat to Israel; it poses a serious challenge to Israel’s system of oppression of the Palestinian people, which is the root cause of its growing worldwide isolation.

The Israeli government’s view of B.D.S. as a strategic threat reveals its heightened anxiety at the movement’s recent spread into the mainstream. It also reflects the failure of the Foreign Affairs Ministry’s well-endowed “Brand Israel” campaign, which reduces B.D.S. to an image problem and employs culture as a propaganda tool, sending well-known Israeli figures around the world to show Israel’s prettier face.

Begun in 2005 by the largest trade union federations and organizations in Palestinian society, B.D.S. calls for ending Israel’s 1967 occupation, “recognizing the fundamental rights of the Arab-Palestinian citizens of Israel to full equality,” and the right of Palestinian refugees to return to the homes and lands from which they were forcibly displaced and dispossessed in 1948.