Any movement that preaches intolerance and persecution must be outside of the law.
This is a common misconception about the Paradox of Tolerance, and I'm going to reference the person who invented it: Karl Popper in his 1945 work, The Open Society and Its Enemies:
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.
Popper argues that we should tolerate intolerance only up to the point of violence. That is, if one physically attacks us, we no longer have the burden of tolerance. Popper is commonly misquoted and intentionally misused to justify violence against disagreement, and that is clearly not his position.
The graphic above states that we should not tolerate "movements" which preach "intolerance." This is a subjective standard. I think Islam preaches intolerance. By this standard, I would be justified in banning all Muslims from immigrating to Denmark. This is why Popper used the much clearer standard of physical violence. Any modern society must tolerate disagreement - including "intolerant" disagreement. We resolve that intolerance at the ballot box. We cannot allow physical violence. No, someone saying mean words is not physical violence.