If you want to go by land ownerships alone you will discover that most of Israel was purchased legally from the Ottomans. I wouldnt go there if I was you.<quoted text>
You clearly missed the point that ownership of the land is a point of law and has nothing whatsoever to do with which fairy tales you personally believe.
Personally I think you best argument isnt a legal argument, but a practical argument. There are a boatload of Arabs living in the region, and some type of accomodation has to do be made. Two states for two peoples.