I don’t understand why anybody would expect the Jews not to be hostile towards the non-Jews since their own religion tells them to completely eradicate the non-Jews.
Deuteronomy 20: 16 Whenever you capture towns in the land the Lord your God is giving you, be sure to kill all the people and animals.
Deuteronomy 7:16 When the Lord helps you defeat your enemies, you must destroy them without pity!
Deuteronomy 25:19 The Lord your God will help you capture the land, and he will give you peace. But when that day comes, you must wipe out Amalek so completely that no one will remember they ever lived.
Numbers 33:31 I will see that your borders reach from the Red Sea to the Euphrates River and from the Mediterranean Sea to the desert. I will let you defeat the people who live there, and you will force them out of the land.