Complex sentence: Rural communities also hold more strongly to the cast system, with the majority of Christians in rural communities being Roman Catholic, while urban areas tend to have the least pressure to maintain caste classes, and Protestant Churches are best represented urbanely.
Split into simpler sentences: Rural communities also hold more strongly to the caste system, Roman Catholics are the majority of Christians in rural communities. The urban areas tend to have the least pressure to maintain caste classes, and Protestant Churches are best represented urbanely.