Your dog analogy could equally apply to Israel as Gaza.
Israel's attitude to Gaza is hostile because its regime seeks the destruction of Israel by its very charter, and it allows deadly attacks on ordinary Jewish families.
It could be different.

Yom Kippur was a defensive war for Israel but when it ended they had pushed back the attackers beyond their start line.

There are many rational criticisms that can be made of Israel.
Why put up irrational ones like claiming they are plotting to take over the whole region?