Earlier quoted context omitted.
The paradox of tolerance is bullshit though, as it's not based on empirical evidence. It's just armchair philosophy used as justification for intolerance by intellectuals, the mental gymnastic people need to get over their cognitive dissonance. AFAIK Plato came up with it to justify autocracy. That says it all actually.
And why should we believe you vs. Plato?
Is it based on empirical evidence? Is it based for example on longitudinal social studies? The answer is no.
And certainly absence of evidence isn't evidence of absence but it's baffling to me how people can cite this as fact, even if it might as well be bullshit.