This is an example of "what we believe; we do" on one hand, with deception via missing information on the other, as seen in the reporting of media outlets closely tied to governments.
You should believe what one says unless they give you reason not to. These are those faithful to their ideology, which is in writing.
Why are these ancient symbols of past cultures destroyed?
The Koran teaches that when Islam spreads by immigration, they will come upon lands that were without Allah and not developed, and the ruins will be testimony to not following the Koran, so when they come upon beautiful buildings, or remnants of advanced cultures, it proves the Koran false, so they destroy the landmarks.
It is why the Twin Towers in New York were targeted, and why the Eiffel tower will be a target as the Islamic population grows in France and integration continues to fail. In Sweden, social workers with years of experience in integration report that the ideology leads them to believe that the free money is "owed" to them, and being forced to get a job is "punishment" as the supremacy thinking fuels victim status rage.