Well, in order to brainwash the German’s children, we had to conquer them first.
This mission of conquest and brainwashing has not been accomplished by Israel. Not yet, anyway.
But go right ahead.
I don't think my first comment implied that this was a viable solution. However, I don't think that German children were born being white supremacist, national socialists. They were brainwashed into it.
And, if stopping this behavior is also to be called "brainwashing" then perhaps I agree. They should be told "if you believe these things, and we believe you will act on it, your relatives will be washing your brains off the ceiling and walls".