This “expert” has not read the un-holy quran.
People tend to do things for reasons.
Not always the right reasons, but reasons nonetheless.
It is very easy within any power structure to misconstrue the actions of others to be based upon the same premises of their power structures, when the latter are based upon an entirely different power structure.
People who direct their actions based upon religious power structures, don’t necessarily change their thinking due to economic considerations. Nor necessarily upon military or intellectual or political considerations. The same might be said of the other power structures.
Most worldly successful people have balanced their thinking amongst those power structures and are used for their strength in any one or combination of power bases.
Some excel only based upon one power system.
Such is the way of the world or worldly systems.
Spiritual warfare is different.
When countering an Islamic threat, one needs to understand the weapons of spiritual warfare and the thinking it represents. Too many liberal peacemakers with Muslims confuse Islamic thinking as being premised upon Judaeo-Christian foundations or simply a comparative religion to Christian denominations, which they also haven’t understood.
Making such mistakes is likely to cast pearls before swine, making them an even more upset enemy, than directly facing the threat and conquering it.