Is Israel to blame for their conflict with Palestine?
It all comes back to WWII - they shouldn't have taken (or be given) that land like that. There were people living in that place before they settled there.
The land belonged to the Palestinians and their ancestors until Western powers decided that the Jews should live there instead. It is completely unlawful and unfair to the native Palestinian people.
At this point they've been fighting so long that it no longer matters who started what. The Palestinians rejected a two state peace deal years ago. If peace isn't possible they'll fight instead. Like it or not, one side has to come out as the winner. Laying blame is irrelevant at this point.
A terrorist organization was firing missiles into Israel's cities, killing women and children. What Israel was doing was simply self defense. The Palestinians and Hamas are at complete fault for the conflict.