Its a mis-translation everyone. What he meant was that the Zionist government would implode, and not the jewish people! ( quote from professor)
He really believes that the Mahdi will come if Israel will be destroyed.
'Khamenei told me that Israel must be burned to the ground'
Former Spanish Prime Minister Jose Maria Aznar tells crowd in Jerusalem that during meeting with Iran's supreme leader in 2000, Ayatollah Ali Khamenei said, "War against the United States and Israel is inevitable."
Shlomo Cesana and Reuter$
Iran 'committed to Israel's annihilation,' says top general
When Ahmadinejad purportedly said Israel "should be wiped off the map" there were many who argued that the Iranian leader was mistranslated. No such argument can be made regarding the latest comments by the chief of staff of the Iranian armed forces.
Eli Leon, Shlomo Cesana, Mati Tuchfeld, Yori Yalon, News Agencies and Israel Hayom Staff
According to the Iranian Fars news agency, while addressing a defense gathering in Tehran on Sunday, Chief of Staff of the Iranian Armed Forces Maj. Gen. Hassan Firouzabadi stressed that the Iranian nation remains committed to the "full annihilation of the Zionist regime of Israel to the end."
According to Fars, Firouzabadi "reiterated the Iranian nation and supreme leader's emphasis on the necessity of support for the oppressed Palestinian nation and its causes," and noted, "The Iranian nation is standing for its cause that is the full annihilation of Israel."
Here is the original link (so apologists won't be able to say that Pro-Israelis altered/mistranslated the message):
Chief of Staff of the Iranian Armed Forces Major General Hassan Firouzabadi said threats and pressures cannot deter Iran from its revolutionary causes and ideals, and stressed that the Iranian nation will remain committed to the full annihilation of the Zionist regime of Israel to the end.
He reiterated the Iranian nation and Supreme Leader's emphasis on the necessity of support for the oppressed Palestinian nation and its causes, and noted, "The Iranian nation is standing for its cause that is the full annihilation of Israel."