Because left wing talk radio never got enough listeners or advertisers to sustain their programming. It's not about being conservative or white it's about being the TALK RADIO genre and Art Bell is TALK RADIO. Easy answer to a racist question meant to demean part of the population. ITS ECONOMICS AND TALK RADIO just happens to be that the population you have identified ACTUALLY LISTENS AND TALK ABOUT IMPORTANT SUBJECTS AND APPEARS TO BE MEMBERS OF THE SUCCESSFUL CLASS IN A ECONOMIC DEMOCRACY :-)