What positive role did the Christian Church play in promoting gender inclusive language and/or feminism?
This is am impossible question to answer because for every positive example to come from the Christian Church (supporting gay marriages and counselors for sexual assault) there is a negative example (the Catholic Churches still prevent women from being priests, condemn pre-marital sex and the use of birth control). So while certain parishes may have produced some good, the overall conclusion is that Christianity has done relatively little to improve women’s lives.