A couple of points. First of all, aren't we doing this already? I mean the atheist left--you and I included--have been working with the religious left on many issues in the USA. Do you have in your mind some specific examples where such wasn't the case?
Secondly, doesn't your definition of ecumenism above end up asking determined pro-choice women to maintain our own separate fight--not only for a legal right but also _access_ (i.e. state funding, insurance coverage, doctor training, actual service provisions, etc.) to abortion--outside the 'common ground,' since there may not be consensus on the need for such a fight under ecumenical tolerance for differences?
What I am saying is this: even if many on this list decry 'identity politics,' wouldn't ecumenism of this kind--which many here seem to also desire--in fact encourage 'identity politics' even more, in that a fight for substantial--not just legal--reproductive freedoms + rights can be only waged outside the above definition of ecumenism?
Aren't 'identity politics' and 'single issue movements' the other side of ecumenical politics?
Yoshie