Just a few thoughts.

I dare say the article overall is rather biased, though I'd point out 1 instance where it understates its case: the burning of churches in Spain started before the Civil War, & was 1 of its causes.
AC does seem to be largely anti-Catholic. It's been said (somewhere) that you tend to get AC in Catholic countries, secularism in Protestant ones. I think (OR?) the idea is that the Catholic Church has quite definite views, resulting in increasing tensions between it & modern secular society. So-called mainstream Protestant churches tend to get "wishy-washy" & adopt secular values a lot of the time.