Religions do not have ancestral homelands. If they did then it would apply to all religions.
For Jews it would be Iraq which is where their religion began and for Christians it would be Palestine where their religion began.
But religions have no rights to a homeland, self determination or a State.
A few Hebrew tribes wandered into Palestine 3000 years ago and set up camp.
At that point Palestine was already 2000 years old. So what? Christians ruled Istanbul for more than a thousand years but have no right to invade Turkey and set up a “Christian State.