You have to draw a line somewhere:
* https://en.wikipedia.org/wiki/Paradox_of_tolerance
* 5 months ago: https://news.ycombinator.com/item?id=24082241
* https://en.wikipedia.org/wiki/Paradox_of_tolerance
* 5 months ago: https://news.ycombinator.com/item?id=24082241
https://en.wikipedia.org/wiki/Quis_custodiet_ipsos_custodes%...
If you want to have some moral higher ground, win them over with your virtue. Yes, it's incredibly hard. But it is not a hypocritical bullshit like this 'paradox'.