I think when they had the pogroms to the east it pushed a lot of poor Jewish immigrants into Germany and many places were overwhelmed.

Pogroms were exaggeratted to high heaven, as noted by Solzhenitsyn. Jews were already situated in Poland, Prussia/Germany for hundreds and hundreds of years.

In France the Nazis actually were only allowed to take immigrant Jews to the camps, not French Jews.

That's not true. Judenrat SS Jews arrested common Jews and sent them to transfer camps to be taught agriculture for the erection of the Zionist state. Hitler and his entourage wanted most Jews, especially those in finance, to leave Germany; and Zionist Jews wanted Palestine, so they essentially made a deal: the Haavara Agreement. Those Jews who had fought for the Reich in WW1 were able to live a life in Germany with very little discrimination until the war years.

The immigrants from pogroms are where you get characters like Fagin from. They aren't rich bankers. They are poor people trying to survive in a system which is collapsing under the pressure of overpopulation and unrooted people who don't have any loyalties to their community.

The Yiddish speaking Jews in russia, many extolled the 'revolution' others fell under its steamroller, were exclusive, seperate and odd to the Gentile. They were extrememly disimilative. They did not practice nor would follow the same laws as a Gentile, as was the case in Russia, until the Judaeo-Bolshevik coup. In fact, these Jews often spoke negatively of the Jews who exploited the peasant theough usury and promoting drunkenness. Where communist Jewish groups desired to rid of these separatist laws and assimilate them into the Messianic state, Jewish telegraphs in California complained of their mistreatment, an agenda which was never successful. During that same time in one town 50 Bishops and 6,500 preists were executed without even a mention from the Western press.