linda alcoff, you have approached this not from a statistician point of view but from a philosophical point of view. >> guest: yes. i think there's a lot of avoidance of this topic. i mean, the klan is not avoiding it. right? the extreme right wing is not avoiding the coming demographic changes in the country, but the liberal establishment avoids it and the left avoids it as well. and i think there are -- they're afraid to poke the bear, afraid to say this is the big deal. this country is going to change. they're afraid to talk about race and in relationship to what it means to be american or american identity or american exceptionalism. so, there's a lot of denial and avoidance, and i think we have to stop that. we have to find a way to talk about it and that's why i think philosophers can make a contribution despite the fact we're not social scientists but we can help provide concepts in a way to talk about what whiteness is, that's realistic, neither naive. >> host: you're wearing a bernie sanders button but you saw the left, including bernie sanders, is avoiding the topic. can you