(Assuming your name is Bibi Netanyahu)
(Actual timeline may vary)
1) Pick up telephone and call Mahmoud Abbas
2) Allow Abbas to take credit for cancelling the latest settlement expansion
3) Announce the opening of serious peace talks with Abbas and the PA, with no preconditions on either side, with both sides agreeing to short term and long term confidence building
Ok, this wouldn't actually destroy Hamas but it would damage them more than anything Israel has done this year. Israel can't destroy Hamas, but the Palestinian people could, and would, if Israel ever gave them an alternative.
For Israel to make concessions to Hamas while rewarding Abbas's nonviolence by giving him the finger... that's what "supporting Hamas" really looks like.