[RansomStark]

I don't think Popper was saying what you think he was.

"[Popper] does not however want us to silence or censor them, but to fight them back with reasonable arguments. He does however say we should have the right to be intolerant (even violently!) to them if they are not ready for a debate, as they may prevent "their followers [from listening] rational argument, because [they say] it is deceptive, and teach them to answer arguments by the use of their fists or pistols." [0]

The Paradox of tolerance advocates violence against those that would prevent speech, not those with intolerant views, unless those be the same group.

Using the Paradox of tolerance the idea of censoring speech you do not agree with, especially when using government authority to do so (monopoly of violence and all that), would be an intolerant view point, and as it prevents debate, should not be tolerated in a tolerant society, and in the end should be met with violence.

[0] https://www.usj.edu.lb/news.php?id=9643

[almatabata]

We should also always keep in mind that he wrote this around 1945. When he wrote this he had Nazi Germany in mind where the Nazis used the SA to beat down their opposition.