No, we do not have "hate radio" in this nation, in the sense that we allow anyone to call for acts of violence.  Anyone who does that is prosecuted, and that of course includes calls for assassinating the president.

If you define "hate" as the voices of those who call for respect for current U.S. laws on our borders,  or who side against the Catholic church on SJ matters,  then you have a deep misunderstanding of American civics.