> From the perspective of your immune system's cells, what exactly does the vitamin D molecule do?
Probably nothing. High vitamin D levels are a side effect of being outdoors a lot and therefore getting more exercise than the deskbound population. I recall during lockdown listening to a Slate Star Codex article (on the Astral Codex Ten podcast) which went through a stack of papers and concluded that there was nothing to see here.
The article should be retitled "Pre-Infection exercise levels associated with severity of Covid-19 illness".
some people never really believed that ivermectin was a horse wormer after reading that its been in use as an antiviral agent for ages, but can you explain what you mean by propaganda to someone who does not follow mainstream news networks (e.g. fox, MSNBC, CNN, etc.) and instead prefers independent media (i.e podcasts, disclose.tv, project veritas, etc)?
If you search on "horse dewormer", you should be able to find lots of mainstream articles ridiculing it, and also Joe Rogan was made fun of a lot for using it instead of vaccines.
If you can't find it on Google, maybe you need to use Duckduckgo or even better, sign up for Kagi search beta. :)
They spend so much time outside that they naturally have good vitamin D levels.