In recent years there has been a lot of bad blood between the Muslims and the infidels or kuffar (unbelievers). They feel that we have been attacking them, and we are equally disturbed by their efforts to turn our cities into Islamic enclaves and "no-go" zones, and by their terror attacks. Each side considers the other's legal system as invalid, improper, worthless, and terrible. Of course, it's more complicated than that, but that gives the flavor of the dispute.
With all this, it should not be surprising that derogatory things have been said on both sides. Like this one about Muslims and their Sharia Law. Some especially the more sensitive or perpetually offended among us would find this description rather harsh.
But that's not harsh at all compared to what they say about themselves. Like this.
This strikes me as an explicit admission, by those most heavily steeped in Islam and most knowledgeable about it, that Islam makes no sense on its own terms. That also fits with the violence and intimidation the Imams are preaching. It's what appeals to those who know they are being dumped on and respond by striking out with any actions through which they can claim some form of dominance "honor killings", thuggery, terror attacks, jihadism.
That Western "1400 years" view is also not harsh compared to what Muslims say about us (non-Muslims), or what they intend for us. It's the same as they intended, and implemented, for every group of people they ever encountered. It was a simple mantra: "Convert or die." And once they got past that immediate threat, they learned their problems were just beginning: "If you try to leave, we will kill you." It was all a part of, and a follow-on, to the only way Islam has ever spread conquest.
How does this problem get solved? I'm not sure, but I do look forward a world like that described in this story.