Unfortunately for you, the only standard that matters is the 90% standard - that's the % of the vote the colored races give to the democrats.When the Republicans or whatever replaces them, get 90% of the white vote, they will rule forever.
"even if the GOP does not do that well with White working class voters." - Other than that, Mrs. Lincoln, how was the play?
I understand your point, but, historically, it has been very rare for any presidential candidate to get more than 60% of the European white vote.
Whites are simply too diverse.
In fact, I’m not sure ANY candidate has EVER crossed that barrier before.
I think FDR (1936) and LBJ (1964), both Democrats, won the two biggest landslides ever, just 61% of the TOTAL vote.
By the way, at present immigration and birth rates, whites will be less than 50% of the population by 2050.
90% of the vote won’t cut it then.
Republicans will have to get 125%, like the Democrats currently do in Philadelphia!