Note, you can start that discussion any time you like - and there is also a law (can't remember what it's called) that says you don't have to disprove bullshit, or convince stupid people that they're dumb. So don't worry about it. The Alex Jones and Berenson types can generally be ignored.
Also, I'm not about to defend any of these stupid videos of soldiers "standing up" to the PTB and demanding answers to questions. I think they are grossly misguided, as a rule, and I don't think I would have made a good Marine. In any case, I think it's worth continuing the discussion on this point in particular.
On this point, my personal belief is that there should be zero religious exemptions for anything in the military. Like, there shouldn't be regulatory guidance that governs religious exemptions. The only thing they do is put military leaders in the impossible situation of determining what "sincerely held" means - which is not a determination that can be made, unfortunately - and then arbitrarily granting and denying them based on that determination. This undermines their roles as leaders, because it does, in actuality, force their decisions to be arbitrary. But in any case, since religious exemptions are a thing, it matters.
I looked for, but could not find, a historical example of a religious exemption for a vaccine in the military. That said, I have a feeling that they're out there, and that they have been approved in the past. Taking that admitted assumption as the case, it was made clear to us as the ramp up to the vaccine being released that "religious exemptions" would not be a thing for the COVID vaccine. Well, ok, cool - not that I particularly care - but why was this message pushed out so clearly, and with such certainty? That occurrence strongly suggests to me that this is an "unofficially official" policy that there will not be any religious exemptions to this vaccine. The idea was floated at the highest levels of our government, and it was made absolutely, crystal clear, that there will not, under any circumstance, be exceptions to this policy - history and our present reality reflects that.
Why is that important? Because it adds to my suspicion that this is all theater. And every day that passes, I become more and more convinced that it actually is. We locked down when this thing first began, and at its absolute worst, we were seeing ~250K/ cases per day with ~3-4K deaths per day (if you subscribe to the notion that COVID was the sole cause of death, which I do not; https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covidview/index.html). Now, you're telling me that this thing is going to imminently peak not only to that level, but at a rate (mathematical certainty) that will top it by 4X!!! Are you kidding me? And all we get from #1 is a statement that if your vaxxed, you can go on vacation, but if you're not, you're gonna die??? Mkay. I don't believe you. I don't believe that these people actually think we're heading to a space where 12,000-16,000 people are going to be dying every day. I don't believe they believe that. If they did, they'd be taking different steps. It's fear porn in order to justify expediency that there is otherwise no appetite for. If they do believe that, and that's all they're doing, then they're even more cynical people than I already think.