Democratic Party still bleeding White voters?

[RR1997]

there's a clear hard floor of artists, musicians, vegans, social workers, mommy bloggers, standup comics, alternative medicine practictoners, enviro activists,  and gays that prevent the GOP from going much further with whites

Don't forget Jews, lawyers, people of Middle-Eastern descent, liberal arts majors, professors, vegetarians (you only said vegans), and Atlas posters.