Alt right anime perhaps...
Make it increment by increment.
If things go to shit you can put it on the backburner for a few months.
The protagonist would be a highly charismatic blonde haired blue eyed male...
You could go multiple directions with this.
Pre-Nazi Germany and responding to the Jewish subversion, follow it through to its natural conclusion, the Nazis beat the allies, employ a full eugenic program, the Japanese become honorary Aryans, etc.
Do a follow-up season where the faux Jews come back with their father Satan and the angelic Aryans have to unite with the kings of the east and destroy the demons!
Modern America, a similar story but you get to better encapsulate the degeneracy which the Jew spread... you subvert the left by infiltrating the universities and creating a secret nazi order, torturing liberal professors, attacking the government monitoring systems, planning purges, going to pride parades, protecting Aryan princesses on the streets from rapist negroes, thereby gaining grass roots support, etc, etc, etc.
