You raise an interesting point and I upvoted because of it. Our democracy should be able to withstand this attack, yes. Having to resort to censorship would very clearly fuel the attackers.
At the same time, there's an awful lot at stake here and I'm not sure we can simply trust that the good side will win. A laissez-faire approach to some of this content may very credibly lead to violence the scale of which this country hasn't witnessed in 150 years.