If I read this correctly (my Swiss German is a bit rusty), there is an unnamed group (presumably somewhere on the left) who called for causing disturbances during a concert of a singer, and the organizers decided to cancel the concert?

Is that correct?

Because if I recall your (now flagged) message correctly, you were claiming that the left was in favor of putting people in jail for their opinions. While "we're going to make a demonstration to show how much we disagree with someone" can definitely be an annoyance, it's really, really, really far from your initial claim.

At this point, I remain unconvinced.