My vote goes for tolerating the intolerant. The level at which things get out of hand, is when violence is used. As Justice Goldberg said: “while the Constitution protects against invasion of individual rights, it is not a suicide pact.” Short of violence, it has been by history to find that people are relatively trustworthy, honest, helpful, considerate, and nice. Granted my universe of people who have been met is relatively small, but still it has been fairly consistent.
What the problem is, is not the intolerant oaf, but the ideas they have, support, and endorse. Ideas do not die, they just continue to re-emerge, on a regular basis. Since history provides us with a basis, for what this or that idea did, when empowered, it allows a nation, a city, whatever,to be aware, and thus be forearmed.
Tolerance also is based to some extent on the hope that all people are basically good, kind, or at least reasonable to some extent. Exposing ideas that are hateful, and perhaps harmful, to many, may be the best inoculation society can hope for.
If we do not let these ideas, whatever they be, into the sunlight of discourse, they will not die, but rather fester under some rock, and like a virus, mutate into something even more deadly, known commonly as a new strain, in more ways than one.