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Tolerance and diversity are obviously buzzwords in our modern world and they should be celebrated.
But to be tolerant and diverse you have to tolerate views that you may hate, despise, that you wish you could completely wipe out from the earth, otherwise, you are simply not tolerant at all and are seeking less diversity.
It sucks, but freedom of speech can only exist by protecting all speech and viewpoints, no matter how odious, lest it not be free at all.
In my opinion.