ZK -“I don’t have any numbers or statistics, but I’m told it was a COMPLETE assimilation.”
This is absolute nonsense. I really don’t have a problem with the rest of the post. While assimilation was high, you can’t call it complete. There were Yeshivos in the US before WWII and produced many Bnei Torah, who raised families Al Pi Torah.
Where did you pick up this nonsense from?