I suppose that many people are less worried about the alt-right because they are very much a fringe movement, even on the right and even with the Trump presidency. But further than that, his opinion has probably been shaped by how he has had more success in turning people away from the alt-right, than from ideological forms of social justice (he has talked about how he has received many letters from people who said that they were drawn towards the alt-right until they started reading his content).
I suppose that many people are less worried about the alt-right because they are very much a fringe movement, even on the right and even with the Trump presidency. But further than that, his opinion has probably been shaped by how he has had more success in turning people away from the alt-right, than from ideological forms of social justice (he has talked about how he has received many letters from people who said that they were drawn towards the alt-right until they started reading his content).