Crux of problem, IMHO, is the immune system response to SARS-CoV-2 Spike Protein(s), whether, of the virus itself, or of the "vaccine" package result.
Need to know a person's status: What is the balance of Cytokines that help, by tilting the immune system response AWAY from an inflammatory response -vs- Cytokines that tilt the immune system response TOWARD an inflammatory response.
Vitamin D3 can help to tilt that balancing act, AWAY from an inflammatory response. In the following video, Zach Murphy explains that vitamin D processing, in addition to explaining the releases of certain cytokines:
COVID-19 and Vitamin D | Association Between Vitamin D Deficiency and COVID-19 [Sunday, 01/31/2021; video by Zach Murphy] https://www.youtube.com/watch?v=cT1CaTv5-e4
Meanwhile, given a co-morbidity label, for example: Diabetes
Focus tends to be upon that term, but, follow the cytokines:
The role of inflammatory cytokines in diabetes and its complications https://pubmed.ncbi.nlm.nih.gov/18673007/
The Role of Inflammatory Cytokines in Diabetic Nephropathy https://jasn.asnjournals.org/content/19/3/433
That last link: "Cytokines act as pleiotropic polypeptides regulating inflammatory and immune responses through actions on cells. They provide important signals in the pathophysiology of a range of diseases, including diabetes mellitus.
Chronic low-grade inflammation and activation of the innate immune system are closely involved in the pathogenesis of diabetes and its microvascular complications."
Crux of problem, IMHO, is the immune system response to SARS-CoV-2 Spike Protein(s) That was the point of this ex-vivo study, to determine how kidney tissue responds to the virus in the absence of an immune response. The result showed cellular damage and fibrosis was directly caused by the virus.
But your point about the immune/inflammatory response in general causing great damage and mortality is certainly well documented.
There was a recent study in Germany that followed up on (mostly mild to moderate) recovered patients 9 months after recovery, and found widespread organ damage. All of these patients were pre-vaccine, so it was definitely the virus. There are going to be long term impacts on our healthcare system from this virus.
Multi-organ assessment in mainly nonhospitalized individuals after SARS-CoV-2 infection. The Hamburg City Health Study COVID programme
One of the recommendations from the study is for people to have systematic organ screening performed 6-9 months after recovery from COVID. Heart, lungs, liver, kidneys.
It seems to me that if it damages kidneys, what other organs are affected just as badly?
What about fertility in men and women?
What if they cause cancers in 5-10 years?.......................