Original sentence: Leading figures in the Catholic hierarchy, including cardinals and bishops, have opposed, and actively encouraged clergy and parishioners to campaign against, same-sex marriage, the introduction of civil unions, adoption by same-sex couples, and other LGBT rights issues,
Edited sentence: The Church urges its faithful to oppose legislative proposals contrary to these teachings that are advanced in the name of same-sex marriage, homosexual civil unions, adoption by same-sex couples, and other claimed LGBT rights, Leading figures in the Catholic hierarchy, including cardinals and bishops, have given expression to this attitude of the Church, encouraging all Catholics to campaign against such proposals