I agree, unless specifically qualified otherwise (such as "the church of the giant spaghetti monster" or "church of scientology") I would assume that the word church relates to a Christian place or group or one one of the many off-shoots (and a quick check of a dictionary seems to support that).
But...
> there are even groups of Christians who object to
That proves nothing though. For any X you can find a group calling themselves Christian who strongly object to X, many Christians think they "own" the word and concept of marriage and have the right to define exactly what it means, and so forth...
But...
> there are even groups of Christians who object to
That proves nothing though. For any X you can find a group calling themselves Christian who strongly object to X, many Christians think they "own" the word and concept of marriage and have the right to define exactly what it means, and so forth...