Only One Way Out Of This Never-Ending Conflict

On every news channel this past week, the main story has been the attack on Israel by the Palestinian militant group Hamas which horrifically killed more than 1,300 Israelis, most of them civilians, and taking more than 100 hostage.
Israel then responded by ordering a 'complete siege' of Gaza Strip and cutting off their gas, electricity and water and launched massive airstrikes which has killed more than 1,600 Palestinians and displaced more than 263,000 people, the vast majority of them also civilians.
With an Israeli land offensive being lined up Gazan's, in the North have been told to move south and stories are emerging of Israeli rockets landing amongst lines of retreating people so we now have an atrocious situation with civilians on both sides suffering the consequences and the response of our leaders has been utterly despicable because instead sending supplies of much needed food & medicines, they are sending warships to aid a nation which is already armed to the back teeth and giving Israel explicitly unconditional support to collectively punish the 2.38 million people in Gaza.
It is the same situation in Ukraine where rather than calling for a ceasefire on both sides, they send arms which just means more destruction, more death and more war.
I am no friend of Israeli policy towards the Palestinians but nor can i support the extremist murderers which are Hamas, nothing justifies the slaughter of innocent people including babies but sadly, that's exactly what is happening to innocent Palestinians now and will continue to happen until the Palestinian death toll inevitably escalates to such heart wrenching levels that the World unites in it calls for a ceasefire.
Any sympathy Israel receives is immediately devalued by it's disproportionate reaction to any attack and yet they never try to consider why they are being attacked so how can there not be even more attacks on them when nobody is even asking that question?
All the time the question of the Palestinians remained unresolved the cycle of violence will continue and create even more hatred on both sides of the conflict and fuel the next war which will see us back in this same situation, the same situation which has been going on for decades and which UN figures show have led to 7,187 Israeli and 103,826 Palestinian deaths since 2008. 
Warships and aiding and abetting more killing won't help, sensible leadership and finally sorting out an issue which has been dragging on since 1948 is the only way out of further bloodshed and why leaders either can't, or refuse to contemplate, joining up the dots saddens me