As I kept saying and keep saying, this was always going to happen. "New school" anti-COVID vaccine antivaxxers are devolving into just antivaxxers, repeating very old antivax tropes, misinformation, and lies about, for example, SIDS and vaccines and vaccines causing autism.
I guess I'm surprised at how much of this is circulating/amplifying in church communities. My father was telling me his "Men's Bible Study Group" spent most of their time together sharing vaccine & COVID misinformation they read on Facebook.
There is a lot of overlap with the "Boomers radicalized by Facebook because Zuck is a horrendous human being" in that, though the religious overlap only amplifies that by promoting anti-intellectualism and a disdain for critical thinking.
You shouldn't be surprised. Nothing spreads as much anti-science crap than church communities. Even more so in Texas and other southern states where there's higher rates of uneducated folks.