1) What is a "troll farm" and what is the criteria used for a distinction between a troll farm and merely some points of view one might disagree with? Maybe this is mentioned somewhere, but I don't see it clearly defined in the link.
2) What is the proof that these are indeed foreigners? It would be trivial for a social media company to label domestic users they find distasteful as foreigners to more easily silence certain points of view, especially given the media's unwillingness/inability to understand nuanced technology issues.
3) Heck, where is the proof that these pages are even moderately operated by actual people and are not mostly bot-generated content?
4) We live in a global, connected world that embraces diverse points of view, right? Are eastern Europeans or others, many of whom still embrace a traditional Christian heritage, expected to not post about their point of view because somebody in San Francisco claims its a troll?
5) How can a data scientist make a definitive claim that the people running these sites have "never been to church"? Maybe these social media firms are making big assumptions about people and are entirely wrong. Maybe they have entirely far too much information about people.