"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."

Have you also read the qualifying statements from Popper around this paradox?

When people say to protect kids. In actual policy and actions to be taken people mean very different things. The far right would say conversion therapy for trans kids. While the left would allow for transition to some extent.
Who is the intolerant here?