First let me restate my position, in more neutral terms.
On the one hand we have the people with faith in a Supreme Spirit, from whom flows all that we are, and whose teachings it is our highest duty to seek out and follow.
On the other hand we have the "Heaven on Earth" world view, frequently used by would be tyrants to justify all manner of power grabs, for "the good of the children" and other such pablums.
In short, the believers versus the secularists.
In your terms, the believers hold a religion, the secularists oppose religions. That is an entirely reasonable use of the word 'religion.'
I was using 'religion' in a broader sense. Both Christianity and secularism are religions in that sense. They are alternative foundations for ones spiritual outlook.
It would be as if I were saying that both democracy and anarchy were forms of government.
When I examine the efforts by leftists to stamp out any reference to Christianity from public life, I find it makes most sense to me if I view it as an effort to make 'secularism' the state established religion (contrary to the Constitution, which prohibits any state established religion).
So I am in agreement with you that Islam is not what we ordinarily mean by a religion - it is, or has been hijacked by, a virulent anti-religion. I am undecided as to whether there is a legitimate, moral religion hiding in Islam somewhere. Either way, the Islam that is visible now is an anti-religion.
When I said this was a religious war, I didn't mean between two religions, as your would use the word. Rather it is a war between the religious and the anti-religious.
Where I would disagree more fundamentally is in response to your comments such as:
What they lack is faith. They are spiritually impoverished. They are not seeking to find the Truth as spoken by a Higher Being, but rather seeking to establish their own man-made visions (delusions) on Earth.
This is not a war of the material rich versus poor. It is a war of the spiritual seekers with the spiritual bankrupt.