globalisation has led to a decrease in church attendance due to covid-19. people travel more which leads to the spread of viruses from abroad. namely covid-19, the elderly are scared to attend church in the fear of catching corona virus, leading to a decrease in church attendance.
Depends what the question is. You're right - there's plenty of factual content re: demographic trends (including migration) - so you wouldn't expect any sort of counter-argument to that. Discussion and evaluation might come in when considering the impact of such changes (e.g. to what extent demographic change impacts the family, etc.)
