The democrats have won most of the elections in the past 30 years and they are still going more and more right. I don’t think you’re correct in this analysis. Hilary Clinton and Al Gore won the elections and didn’t become president, even discounting that the democrats have been in power for the majority of this century and they have only become more and more right wing.
It is because deep down these white supremacists believe the inherent right of the US military to exist and stomp over the whole world.