You need to read a book on international law. And your history is shoddy too. At least 5 other ethnic groups lived in Palestine before the Kingdom of Israel — which fought wars to conquer the lands. Moab, Edom, Ammon, Amelek, and — yes- Philistines. The bible is not a property deed.
Your views only make sense if you are consistent and say that only tribes/groups/races that owned land X in 3500 b.c.e. can live there now. Shourld the Bulgarians move back to central Asia, the British move back to Norway or Germany, the Americans all move back? No one has rights in international law to land owned 5000 years ago.
Please tell me where it says “my ancestors lived here 600 years ago, so I can go kick families from their homes without compensation”. The ancient history is irrelevant. The point is that hundreds of thousands of people were forced from their homes in mass ethnic cleansing that was deemed illegal by international law.
Nothing you say diminishes the fact that hundreds of thousands lost their lands for no reason other than some religious mythology. And they continue to suffer today in poverty and refugee camps under Israeli apartheid-like regimes.
The fact that you care about who lived where 5000 years ago and not about people suffering today says quite a bit about your sense of morals.