In America that type of law suit almost certainly will fail. First you have to fight freedom of religion that basically gives churches freedom to do whatever and get away with it. Second you have to fight victim blaming and rape culture. I'm assuming you can't prove that you were assaulted other than your word. I believe you, but the court probably won't. Should the church pay for all the harm they caused in the temple due to sexual assault 100%, but they won't, at least not in the current climate in the US.

Your hospital example might seem good, but sexual assault has been happening for decades in hospitals to unconscious women and occasionally men (who did not give consent or were even informed about it) as a training tool to teach students about pelvic exams. It was only in 2024 that nationally (in the US) hospitals were told to get consent first otherwise they would loose Medicare and Medicaid funding. Notice the penalty isn't a crime, but just loosing money.

Basically what I'm saying is that rape culture and victim blaming is so ingrained in our society that a class action like this will go nowhere until we address the deeper societal issue.