For all those blindly following scientific consensus (especially where politically useful) - it might be useful to take a step back and consider the philosophy of science. Science is aways done by people in particular contexts. Some treatments are given emergency licence, some trials are funded by drug companies, some trials are carried out by physicians who can't get funding.
For example, are you aware of the hugely influential theories of Thomas Kuhn? Forgive the wiki synopsis but assuming this is unknown.
"Kuhn made several claims concerning the progress of scientific knowledge: that scientific fields undergo periodic "paradigm shifts" rather than solely progressing in a linear and continuous way, and that these paradigm shifts open up new approaches to understanding what scientists would never have considered valid before; and that the notion of scientific truth, at any given moment, cannot be established solely by objective criteria but is defined by a consensus of a scientific community. Competing paradigms are frequently incommensurable; that is, they are competing and irreconcilable accounts of reality. Thus, our comprehension of science can never rely wholly upon "objectivity" alone. Science must account for subjective perspectives as well, since all objective conclusions are ultimately founded upon the subjective conditioning/worldview of its researchers and participants."
Ivermectin may be a case in point. You don't have to imagine a conspiracy. It is a normal part of scientific progress (even in normal times) for unexpected efficacy to be ignored until there is a build up of overwhelming evidence in the face of the previously dominant paradigm. Hence the terms of 'scientific revolution' and 'paradigm shift'.
The reason why some believe this to be criminal is because these aren't normal times and the rule book has been thrown out of the window to protect the economy (and has been hugely successful in terms of making the already rich richer and increasingly inequality both at home and abroad).
So experimental vaccine treatment with no safety record was given emergency licence. But ivermectin, with a huge safety record, was banned. Surely if there was no known risk ivermectin should have been granted emergency licence so that doctors could use it in the face of no alternative? It's supposed efficacy was known about before vaccines were even available to the elderly and vulnerable. Reams of data regarding the efficacy of ivermectin is dismissed in favour of suck it and see data still being collected in the real world by people that never consented to be part of a trial.
Even now we are waiting to see because no other country in the world has faced high number of vaccinations prior to a to a new wave with dominance of a new variant. There is no precedent.
As data emerges the 'yeah but' arguments are falling by the wayside. We now have exponential increase of positive tests, hospitalisation and death. We can't easily compare this as the way the data is collected and presented has changed - we now have under and over 50 plus lots of detail about vaccination status. But the unvaccinated are lumped together - we don't know if they were eligible due to age or condition or whether they refused etc.
Know one knows for sure based on scientific evidence or precedent. So open debate. Caution. Don't do anything that could make things worse by making fool hardy assumptions.