Nazi Germany's enemy, the British Empire and their zionist allies:
1 - invaded, occupied and colonized their country by brute force from 1917 to 1948,
2 - destroyed the arab society that existed in Western Palestine stealing their homeland in the process,
3 - murdered hundreds of thousands of Palestinians from 1880 to 2021
4 - sent another hundreds of thousands into exile where they still languish in dirt poor refugee camps unable to return.
Amin Husseini was a desperate leader trying to prevent the global superpower and its zionist allies that occupied his homeland from destroying Palestine's native society.
History proved him right.