Social bubbles, man. Go to any place where "new age" people hang out. You'll find them by the dozen. They also - collectively - believe in a veritable smorgasborg of quasi-religious beliefs a la crystal healing. It's important to understand that "belief" doesn't mean the same thing for them as it does for you and I, for their in-group is determined by a staunch refusal to police any notion of objective truth. Maybe they don't all believe 5g causes covid, maybe only 5% of them do, but if someone pipes up with that at a gathering not a single person will challenge them. Instead what will happen is that someone will chime in with their own different, related conspiracy theory / piece of nonsense. Everyone gets to pick and choose which myths resonate best with themselves, and yet collectively they reinforce each other.
There are literally millions of these people. In my opinion they're also one charismatic leader away from being a fascist voting bloc.