If he represents a significant portion of muslims, that makes him mainstream Islam not radical.
You are correct. And you will not hear one “mainstream” muslim come out and condemn his statements. And the general muslim populace within the US will say and do nothing. And every time some idiot says she was asking for it, we should reply, “yeah, that woman was just asking to be raped wearing the short, tight skirt.” There are other examples we can also use.