"In this formulation, I do not imply, for instance, that we should always suppress the utterance of intolerant philosophies; as long as we can counter them by rational argument and keep them in check by public opinion, suppression would certainly be most unwise. But we should claim the right to suppress them if necessary even by force; for it may easily turn out that they are not prepared to meet us on the level of rational argument, but begin by denouncing all argument; they may forbid their followers to listen to rational argument, because it is deceptive, and teach them to answer arguments by the use of their fists or pistols. We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant. We should claim that any movement preaching intolerance places itself outside the law and we should consider incitement to intolerance and persecution as criminal, in the same way as we should consider incitement to murder, or to kidnapping, or to the revival of the slave trade, as criminal."

Popper considered "intolerance of intolerance" as a response to be state-issued suppression and that the preferable alternative was the court of public opinion (and rational argumentation). IMO, it's clear here he's not just talking about strict authoritarianism. Especially given the phrase "any movement preaching intolerance..."

Call me when SJWs are stringing up conservatives to murder them and then we'll talk.