Christian democracy is the political culture that has been the driving force behind European integration. Yet, according to Martino Comelli, it has also facilitated the democratic backsliding of some countries of central and east Europe by providing an illiberal political toolbox of narratives and policies
Christian democracy is perfectly liberal. But of course a liberal cannot find that liberalism itself is the problem.
that's literally the point of the article... did you even try to read it? "This intrinsic hostility towards democracy has made Christianity and liberalism unlikely bedfellows. Christian democracy, then, represented the European way of liberalism. Politically, both have worked to tame and present a new version of democracy much more restrained in limits, goals, and possibilities."