Not because I specifically agree (or disagree) with them. Personally, I also consider myself in a pretty good position to judge this stuff, however I decided a while back that even when I think I'm sure I'm not going to tell it as a fact, especially online where other readers can't easily tell if corin_ or doreenmichele are making great points or deluded idiots. (A quick edit here: I didn't mean that to imply one or both of us are deluded or idiots. Just that neither of us are coming into this thread with "here are my qualifications and/or research to make me more than a random commenter".)
My reply wasn't that you were wrong in your beliefs, however this part in particular:
"And that led to an epiphany for me [...] So I got a pizza and then he felt vastly better. So the whole blood angle is cemented in my mind like "Clearly, this is a hard fact and..."
My point is that even if you are 100% correct about the blood issues and zinc, you have literally described a one day process of epiphany to pizza to fact proven. Whether you're right or wrong overall, that's not how people should be forming opinions on fighting covid.