“Then answered all the people, and said, His blood be on us, and on our children” (Matthew 27:25).
And it has. The blood of 6 million of them was shed during WWII, countless millions during the Dark Ages. The Jews accepted the blame, and they will pay for it until the day that they recognize Jesus Christ as their Messiah in the future . . .
“And one shall say unto him, What are these wounds in thine hands? Then he shall answer, Those with which I was wounded in the house of my friends” (Zechariah 13:6).
Wow.
While judgment did come due to rejection of their Messiah and persecution of His own (Forbidding us to speak to the Gentiles that they might be saved, to fill up their sins alway: for the wrath is come upon them to the uttermost: 1 Thessalonians 2:16) yet one of the most reiteration teachings in Scripture is that "The fathers shall not be put to death for the children, neither shall the children be put to death for the fathers: every man shall be put to death for his own sin." (Deuteronomy 24:16; cf. 2Ki 14:5,6; 2Ch 25:4; Jer 31:29,30; Eze 18:20)
We all are effected by choices our forefathers made, for good or bad, but we are not punished for them. And it is the devil who wanted to exterminate the Jews and thus charge God with not keeping His promise, and Hitler was one of his proxy servants (as liberals are today). That said, I suspect that overall the Jewish culture in 1930's Europe was very insular and self-righteousness while being good at controlling wealth, and which did not endear themselves to the population, making it easier to make the Jews scapegoats for Germany's problems. But they need to receive the ultimate Scapegoat of Lv. 16.