1928
Mainstream Conservative Parties 57.0%
SPD 29.8%
KPD 10.6%
(SPD+KPD=40.4%)
NSDAP 2.6%
1930
Mainstream Conservative Parties 44.1%
SPD 24.5%
KPD 13.1%
(SPD+KPD=37.6%)
NSDAP 18.3%
1932 july
Mainstream Conservative Parties 26.8%
SPD 21.6%
KPD 14.3%
(SPD+KPD=35.9%)
NSDAP 37.3%
1932 november
Mainstream Conservative Parties 29.6%
SPD 20.4%
KPD 16.9%
(SPD+KPD=37.3%)
NSDAP 33.1%
As you can see, the left (SPD+KPD) remained relatively stable during the Weimar Republic, between 35% and 40%, and the NSDAP increased through the decline of the mainstream conservative parties (Center, DNVP, BVP, DVP). I don't think the NSDAP voters were trolling. I think they wanted something radical to fight against the red threat. They knew what they were doing.
There were four million new voters between 1928 and 1930. Is it not possible that at least a small fraction of those were apathetic but just voted for the most crazy party for the lulz?
