We have seen how obsessed Israel is with settlement expansion. This goes double for the current government. They could not even temporarily pause in settlement construction when asked nicely by the president of the USA. TO achieve peace, not only would the settlement enterprise be derailed, it would be reversed significantly, maybe completely. Israel wants to avoid this at any cost. Any cost includes avoiding peace. Israel's settlement enterprise made huge gains during the Iraq war. It also made huge gains under Olmert during the 2006 war, even though the Kadima charter pledged a "significant withdrawal" from the west bank settlements. An America war with Iran would last a long time and would be ideal for settlement growth. The question is, will Obama or any other American president send young Americans to die for Israeli settlements.
Iran deal opposition grows among U.S. Republicans, Reuters poll shows (Reuters)