Employer Keeps Insisting Scientology Based Training Is Secular And May Not Accept Our Refusal To Attend Future Trainings On Religious Grounds

UPDATE: one of them was fired.

I work at a small, family owned, veterinary clinic. We had a scientology training at work a few days ago. I, and a couple other people, wrote letters saying we will not be going to any more as it is all based on scientology. I also wrote a note to the owner detailing the ways I thought that training was not productive and suggested trying something new now since the staff don't seem to be getting anything from this, regardless of religion. (I am pretty well respected around the office, I have given honest feedback before)

I am very strong in my convictions and am really questioning the company now. This has also caused a lot of drama and gossip. With the drama, my own personal moral conflict, and my preexisting mental health conditions (BPD), I needed to take some time off work. I told my supervisor that I am not in a place to discuss this rationally and do not want to be sucked into the drama, so I can't be there until I figure out what this means to me. I have gotten minimal responses to that and absolutely no response to my email to the owner.

Apparently there was a "department meeting" that really ended up being the owner and executive staff telling the dissenting employees that it is absolutely not religious and that it is a good training that is very helpful. I am glad I was not there as I probably would have said something to get me in trouble.

The dissenting employees felt a lot of hostility and were very uncomfortable during the meeting. They have also expressed they have felt hostility around the office. One of them has decided to start looking for a new job because of upper managments reaction.

There are talks of taking legal action, but I am not sure there is anything there. I am worried that with their insistence that is secular and scientology's methods of scrubbing overt religion from their teachings and calling it "business training", a judge might say its not a religious issue and side with out employer.

I am also concerned because, since it wad just a one day thing (this time) and we didnt realise it was scientology until we were already there,, we have not actually been formally reprimanded for not going to a class. It has been strongly implied that we will be expected to go next time. The owner is clearly very mad at us. The other employees are saying they are getting a hostile work environment from it, and practically had a mental breakdown, so they think that might be enough to claim religious discrimination.

Do you think this is worth pursuing? I am worried my judgment is clouded on this because of how strongly I oppose scientology itself.