Well, 70% of Israelis were born there, and most immigrant Jews go to firmly Jewish lands, so the odds of any random Israeli being a foreigner who came to settle traditionally Arab lands is quite small, though they do exist of course, and are rather shitty.
Regardless, the attacks on October 7th were concentrated on the land immediately surrounding Gaza, which has been firmly Jewish since the 40s. No Palestinian peace plan has ever claimed them. So even if you accept that direct violence is acceptable against people explicitly displacing Arabs, that describes essentially no victims of the attacks.