The first immediate effect of women getting the Suffrage was anti immgrant nativism and isolationism
Women were disproportionately against the league of nations and pro “Keep America out” european intanglement
Britain and the Dominions,had a similar story
( But in their first election which women over 30 could vote ,1918,the ‘khaki’ election they overwhelmingly voted the other way, for reparations and revenge which caused the rise of hitler)