The Nazis actually were not that popular in Bavaria, they ended up with more support in the north actually. That was partly the work of the relentless campaigning by the Strassers.
Of course south german mass immigration started before political immigration of 1871. But it accelerated with ... economic unification that started in the 1830's with the Zollverein.
The point between Hitler and the Bavarian opinionis: He was Bavarian, not Prussian, so was his movement. Your picture of poor innocent South Germany taken over by evil Prussia is wrong. Instead, the secession of Bavaria could prevent Prussia from contamination by the Bavarian Nazi-ideology.
The Nazis actually were not that popular in Bavaria, they ended up with more support in the north actually. That was partly the work of the relentless campaigning by the Strassers.
State parliamental elections in 1924:
Prussia: 2.5% NSDAP
Bavaria: 17.1% NSDAP
Before 1932, the Nazis were a south German phenomenon, and even after that their popularity in Prussia was below not above average.
Source:https://de.wikipedia.org/wiki/Ergebnisse_der_Landtagswahlen_in_der_Weimarer_Republik#Preu.C3.9Fen
The Nazis actually were not that popular in Bavaria, they ended up with more support in the north actually. That was partly the work of the relentless campaigning by the Strassers.
State parliamental elections in 1924:
Prussia: 2.5% NSDAP
Bavaria: 17.1% NSDAP
Before 1932, the Nazis were a south German phenomenon, and even after that their popularity in Prussia was below not above average.
Source:https://de.wikipedia.org/wiki/Ergebnisse_der_Landtagswahlen_in_der_Weimarer_Republik#Preu.C3.9Fen