The wipe Israel off the map quote comes from a speech held by Mahmoud Ahmadinejad in 2005. The quote is a mistranslated Arabic figure of speech taken out of context and has been regurgitated by Zionist lobbies for over 15 years now.
There is no inherent basis for a conflict between Israel and Iran. Iran isn't an Arab country, doesn't have any territorial claims in the Levant, and the Palestinians' version of Islam isn't even compatible with Iran's. Who benefits from keeping the conflict going? The Israeli arms industry. You can ask the same thing about US trade tariffs on China. Who benefits?