I stopped replying to this racebaiting POS troll after he came out in favor of racial segregation. You all should do the same.
The OP believes human beings are nothing but little boxes on his race bingo card, and seeks only to divide and dehumanize to serve his racist agenda.
And the Dems never lost "white men." The OP's premise is so overly broadbrushed it's absurd. They did lose the Barry Goldwater-voting George Wallace-loving Lynyrd Skynyrd-listening crowd, which happen to be mostly white men, back in the 60s-70s, but that's something to be proud of.
To expand on this point with local politics, the other day on a forum local to me, a poster there lamented that today's Democratic mayor of Portland isn't like Frank Ivancie, a former Democrat mayor. Oh, how the Democrats have moved to the left, this poster cried!
Ivancie's claim to fame, as city councilmember and eventually mayor over more than 2 decades, was to have minorities, LGBT, and Vietnam war protesters harrassed and jailed. He used the police dept he controlled as his personal political weapon, and openly barred those groups from getting employment with the city. He wanted half the city torn down to build freeways, even though that meant the govt seizing thousands of privately-owned homes. And the list goes on.
The "white men" who approve of that kind of shit are the "white men" the Democrats have lost, because what the Democrats stopped offering them was the power to oppress others. And as a white guy myself, I say good riddance.