You can find lots of corroborating data at the Elder of Ziyon Blog — http://elderofziyon.blogspot.com/

Also, this recent book is a must read: The War of Return: How Western Indulgence of the Palestinian Dream Has Obstructed the Path to Peace Hardcover — by Adi Schwartz and Einat Wilf.

https://www.amazon.com/gp/product/1250252768/ref=as_li_tl?ie=UTF8&tag=benrothkswebp-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=1250252768&linkId=655ce432a96544fc9c6ba659071836fc