There is a philosophical argument to be made that absolute tolerance leads to the abolishment of tolerance:
"Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them.βββIn 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."
I myself do not like the law because it places the responsibility of deletion into the hands of the platforms, which is IMO something that a court of law should decide. If a court is too slow maybe they need to establish a new branch of justice for things like this and actually employ more people.
But does Popper's standard apply to anything in contemporary Germany? Does AfD come even close to "denouncing all argument;". I mean beyond the mere fact that, like all politicians, they like to talk in meaningless ways.
It seems that by the time Popper's argumentkicks in, the offending speech needs to come very close to the "incitement of violence" standard that everyone already agrees is not protected by free speech.
Popper's argument would also have force in brainwashing type situations like the Jonestown cult. But any action taken against such groups can be based in terms of the rights of individual members to hear people other than the preacher, not on the silencing the preacher.
"Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them.βββIn 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."
(from Karl Popper, more: https://en.wikipedia.org/wiki/Paradox_of_tolerance)
I myself do not like the law because it places the responsibility of deletion into the hands of the platforms, which is IMO something that a court of law should decide. If a court is too slow maybe they need to establish a new branch of justice for things like this and actually employ more people.