And what's ignored about the so-called paradox is the commonly omitted second half of Popper's quote:
"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 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."
This already fits well within the realm of free speech, free association, and the retributive justice system. The intolerant and the tolerant (both of which are in their common parlance subjective terms) are not required to associate with each other. Either party has the right to speak its mind. Only when force is involved would intolerance be justified. And even then, such intolerance should exist only in an objectively assessed proportion to the prior intolerant acts carried out and no more.
https://giggsboson.medium.com/stop-misusing-poppers-paradox-...