Most white progressives are not really liberal. Instead they're just going with the current cultural zeitgeist, which has moved further and further to the left for decades now. If it was 'in' and more easy to be a conservative or even a racist, many of them would be exactly that. When they say they don't have a racist bone in their body they're just virtue-signalling, as if to say 'hey, look at me im not racist, im a good white person aren't I?" This buttresses their ego and allows them to attain socio-economic rewards (eg, being hired by liberal companies like google). But God forbid if their duaghter wants to marry a black man. Principled liberals exist, but they're in the minorityI didn't know non racist whites also did that, I thought they were liberal but they're just as conservative as we are about race mixing.
You can see the same empty virtue-signalling with Somalis who claim they view *******s as equals. 90 percent of them wouldn't even consider marrying one or letting a family member marry one.