I go to a casual baby/toddler group that is held at a church hall (it is not religious, the hall is available for us to use). There is no organizer/leader.
One of the more outspoken members, who belongs to this church, has taken it upon herself to arrange a "church service" on Thursday mornings, with bible stories, songs, etc., at the same time as the play group. She decided to ask the group (on FB) what they thought, because she just wants to make sure the kids won't be too distracted playing to enjoy the church activities.
While I appreciate what the church has done, allowing us to use the hall, I do not wish for my children to participate in religious services. This was a very non-religious play group.
How do I politely decline or voice my disagreement with this?