First past the post is helpful to the church

If we assume that the centre-right fptp party the Conservatives is sympathetic to the church then we can deduce that fptp is helpful to the church. The reasoning is that since fptp 'forces' voters to vote tactically this means that the two main parties are receiving votes from people they otherwise would not if not for fptp. Fptp enables the two main parties to receive unwarranted votes. So if one of the main parties (the Conservatives) supports the church people are giving political support to the church without wanting to. The church gets more support from the state than it would do if there is a legitimate voting system in use. Because fptp forces voters to be tactical this means that the church does better than otherwise.