I have re-read it, and its just as wrong headed and full of fallacies and unsupported assertions as before. I think it gets worse every time I read it.
A secular society does not ignore ethics. A secular society is not based on "atheistic science". A secular state can be, but is not necessarily "tyrannical and dictatorial", nor does it "threatens to establish a new and godless type of mastery over the hearts and minds of modern man".
Secularists did not "institute a revolt against God himself". Most secularists are also religious individuals.
Secularism did not lead to the "unlooked-for harvest of world wars and international unsettledness." Yes, the 20th century was a violent one, but no more so than the 17th century, and in terms of death rates per capita (as opposed to absolute deaths) the 18th-20th centuries are most notable in their declining rates of violence, both in wars and between men.
There are few, if any, of the teachings of Jesus, that weren't recognised and preached 500 years before his ministry in Palestine. There is vastly more behind the gains of the 20th century that is attributable to the lessons of the enlightenment than there is to the teachings of the New Testament.
Again, for emphasis, I think you, and the quote in the OP, attribute vastly too much agency and intent to secularism, seeing totalitarianism where there is no evidence of it.
Rejection or exclusion of religious considerations does not equate to totalitarianism, in any sense. Ignoring something, or excluding it from areas where it has no role or business being, is not suppression of the free exercise of religion, beyond where is interferes with the free exercise of the rights of other people, who may or may not believe the same things.