> radical Islam basically just wants you to convert

Then what do you call actual radical islam that preaches death to all infidels, women honor killings and unending war-on-the-west, among other equally grotesque actions?

White supremacists are fine with "lesser races" be subjugated and "taught their place" under the rulership of their "true masters". Practically none of supremacists want to exterminate other races - only to take superior position over them. Which matches the position of Islamic supremacists - you can live under Islamic rule (either as Muslim subject to Islamic authority, or as infidel recognizing Islamic law supremacy and bowing to it) or die.

That's hardly a moral distinction at all.

How about that ol' apostasy?