The stated aims of Hamas are given in their Charter called 'The Covenant of the Islamic Resistance Movement'.
In its opening statement, this quote appears, "Israel will exist and will continue to exist until Islam will obliterate it, just as it obliterated others before it."
In article seven, “... the Islamic Resistance Movement aspires to the realisation of Allah's promise [the obliteration of the Jews], no matter how long that should take.”
In article thirteen, "There is no solution for the Palestinian question except through Jihad. Initiatives, proposals and international conferences are all a waste of time and vain endeavours."
There are plenty more unsavoury sentences in this document which you can find here...
http://www.standwithu...rs/Hamas_covenant.pdf
I'm not suggesting that Israel is whiter than white in all this – far from it. But when your next door neighbours have a publicly stated policy of wiping you off the face of the earth, you'd do well to keep a close eye on them.