So would you agree with a statement that "we should just be tolerant of the KKK and win them to our side with virtue", then?
Note that this isn't hyperbole for rhetorical effect, that is literally the kind of intolerance that the paradox of tolerance is based on, and seems to be what you're advocating, by extension.
Yes, I fully agree with that statement. You can't just beat the racists from KKK into submission. You can only show them that their convictions are wrong.
Just a nitpick, but fascism inherently has a component about a faux nostalgia for a vague better times, ultranationalism, and so on, and simply by suppressing speech one does not became a fastics, you probably mean totalitarian.
There's at least one person I've heard of of doing this type of interaction to change the minds of KKK members— Daryl Davis. He's certainly an uncommon example though. Most people who are in stark disagreement with another's views don't seek them out as potential friends.
“Ignorance breeds fear. We fear those things we don’t understand. If we don’t put a lid on that fear and keep that fear in check, that fear in turn will breed hatred because we hate those things that frighten us.
“If we don’t keep that hatred in check, that hatred in turn will breed destruction. We want to destroy those things that we hate. Why? Because they frighten us. But guess what? They may have been harmless and we were just ignorant.”
Note that this isn't hyperbole for rhetorical effect, that is literally the kind of intolerance that the paradox of tolerance is based on, and seems to be what you're advocating, by extension.