Why did the jews maintained their national identity despite three major attempts at their destruction?

it’s been a matter of priority for the jews to maintain their national identity.

they give the jews their god, their religion, their lifestyle, their land. and it has been a priority since forever for jews around the world, regardless of their native language, to learn hebrew so they can read the scriptures in the original.

your answer is a hope this

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.