They vote Democratic because they regard a homogeneous, white Christian nation as a threat. So they encourage Third World and non-Christian immigration, and policies that subvert Christianity (abortion, gay marriage, sexually explicit entertainment.)
And after offering so much support to leftist grievance groups, Muslims, and people of color, they are surprised when they are not embraced as a fellow victims of Christian white supremecy.
Sounds like you’re saying that even though they know exactly what they’re doing, they still vote the way they do with such unrealistic expectations. I want to give them more credit than that, but it kinda does lead me to believe that like so many other Democrats, they’re just smart in a bad way.