The burners are not causing problems. They’re exposing a sickness that these individual people have in their minds. A healthy person doesn’t try to hurt someone just because they’re offended.
These sick people who would hurt someone for burning a book are the same sort that would throw acid on a woman for some bullshit medieval family honor, for example.
Better to incite them and get them arrested and perhaps even deported before they’re allowed to hurt anyone. It shows you won’t tolerate it in your society.
Hell, it may even encourage more moderate Muslims to move to that country if they know that the society doesn’t tolerate the actions of the small, insane minority. The Muslims that believe in liberal ideals like freedom of expression are exactly the type of immigrants that make a society stronger and we should encourage them.
All this law will do is allow that unhinged mental illness to rest, in secret, before coming out in some other toxic way.
I’m not saying that the book burners are being entirely altruistic here. I wouldn’t be surprised if they honestly hated all Muslims. But it is their right to express it without hurting anyone. This feels more like a “broken clock is right twice a day” sort of situation.