Hamas arose because Palestine was being destroyed. It's like saying the IRA were created to destroy Britain. The order of the frame is somewhat wrong even though each commited acts of terror against occupying forces. They arise out of occupations, brutal, and assymetric and then visit often brutal violence, assymetrically, upon the occupier. To say they are created to destroy the nation which is the cause of their existence is to pretend that they'd be doing it even if normative conditions came about which, if we're drawing history lessons from such conflicts, we know is not true. See the Good Friday Agreement for proof.
Where's the IRA, the same one which murdered more British people you can count, today? In Government, north and soon to be south and non-violent. The unionist "side"? The same. In government in the north.