I think it's the combination of a burning temple and overt nationalism but state sponsored violence against people worshipping inside adds a bit of extra detail, for me anyway.
It was a tree (lit by Palestinian incendiary fireworks aimed at those dancers)
I feel it’s either ignorant or disingenuous to even make the comparison. Israeli police stopped the rabble going near the temple. Netanyahu (who is a right wing criminal) ordered that. Yes the police action inside the temple are shocking and there should be recrimination for that, but allegory to the Holocaust and ethnic cleansing is bang out of order. And part of the reason many see anti Israel as anti Semitism.
(as an aside, if 200 rockets were fired at London, New York, or even in northern island by militants, what do you imagine the reaction would be? )
Oh the explicit direction of German high command:
7500 businesses destroyed and looted
267 synagogues destroyed and burned
90 cemeteries destroyed
1700 rapes
30000 arrests (and reforming in concentration camps)
60000 beatings
personal homes looted and destroyed
fines to repair the damage, forced on the jews (they had to pay 20% of all assets above 5k rm)