Yeah, the primary intolerance is done by the champions of Popper's maxim, who weaponized it and use it to cast away anyone who disagrees with them.

I keep saying: the paradox of tolerance applies recursively. To preserve tolerance, the intolerant must be removed from the community. However, if in the process of removing the intolerant, you cause collateral damage on innocent, tolerant people, then you become the intolerant that needs to be removed.