Most of the Israelites' enemies were taken out by their other enemies. 4000 years, and the land only belonged to them for 400 of them because they got curb stomped every century or so.
From what I could see, Israel mostly sourced its own findings and statements as "evidence". This, to me, seems weak. As SA pointed out yesterday, nobody admits to committing genocide.
Sorry, but no. If the people living there are supposed to be somewhere else and were moved there because they had no choice, they're still refugees. They don't stop being so after some arbitrary length of time.