You mean that you agree with this bit? "When you differ with the left on any subject—and I mean any—the people who claim to be tolerant don’t attack your position; they attack you." It's the core of what he is saying. He acknowledges later on that not all ideas are equally good, that it's rather about respect for people. So what he's really saying in the video (and I don't see him nuance that at all), is that
all the left attacks people on their personality rather than on their opinion
whenever someone disagrees with a leftist stance. Do you agree with that opinion? (There is a transcript of his talk
here.)