Come grasshopper, listen and I will teach you.
Combating 'bad' speech with facts and reason will have no effect or drive the person to dig in harder IF what the stupid speech is what the person wants to hear.
You want proof? Look at any Trumpet that posts here. Not a one will allow facts and reason to change their love of the orange Satan.
The alt-right was a thing before Trump ever was. I was on a small forum mostly populated by the ****ers prior to the 2015-2016 election cycle. What I took away from my experience there is that certain actions designed to prevent radicalization actually serve more to validate the anti-PC crowd.
People in general will dismiss facts that rail against their own narrative, or what they beleive to be true. It's called, 'cognitive dissonance'. There's a name for it, because it's so freaking common with people who posess a human brain. I would argue that Trump supporters take this to cult-like ends, but that's me coming from a place of not agreeing with them on almost anything. The thing about these mental ****-ups, is that you don't even realize that it's happening when it happens.
It was actually through my interactions with atheists on message boards that I ended up dropping religion, but it didn't happen overnight. I didn't just walk into a debate and walk out throwing my fealty to God on the ground. Ignorance is far more resilient than that. I don't come here expecting to convert anyone any more than I expect to turn Republican, but I do consider the possibility that my own wrongness is beyond my radar, and reflect on that, and that's all I could ask of anyone else. Rome wasn't built in a day and whatnot.
I'm not going to say things are equal, because that's certainly not what I think, but I find myself dissapointed with
everyone from time to time, myself included. I'm stubborn, and do not yeild easy; sometimes that's a good thing, and sometimes it is not; it's not good to accept everything without scrutiny or contemplation, but the repulsion towards accepting that which we don't want to hear is one of the greatest obstacles that mankind faces.
It's worth noting that a web forum is not a school. What you see before you is a collection of people who've already made up their minds, think they know something, and are here to impart knowledge on the unknowing masses. Okay, im exagerating a bit, and probably being unfair, but my entire forum-going experience has been dominated by the prevalance of mind-games, egos, and every single thread essentially being a means towards people one-upping each other. Most people don't learn much of anything on a web-forum because they don't go there to learn--they go there to beat the other guy or gal into submission and give themselves their daily injection of pride--though I must admit that there's a bit of projection going on here.
While I could understand the compulsion to hide away narratives that we consider to be extreme or even dangerous, doing so is actually like trying to grip too tightly on a wet bar of soap. What ends up happening is you lend validation to accusations of the left-wing being anti free-speech, and them kids end up hearing whatever garbage you were trying to keep them from, anyway.