@PoleToPole
It is worth noting that it was extremely common back in the day to note a diagnosis of TB for most children coming into orphanages, residential schools and other "care of the state" facilities.
The vast majority of children were never actually medically diagnosed, but it provided a convenient way of not having to put any additional time or resources into investigating cause of death. Any other unknown maladies could also be attributed to TB this way, and saved on medication costs.
TB is, and has been, an issue in Indigenous communities, but the residential school staff would have been keeling over in their droves too if the figures recorded for kids with TB were accurate. Unsurprisingly, the staff were not keeling over in droves.
Possibly, and it's true they didn't have the capacity to do x-rays and such.
On the other hand, Dr Bryce, who was noted for trying to get the kids out of the schools for health reasons, and whose records are used as evidence in other cases, reported that every child he examined showed signs of tb. He wasn't trying to justify the bad conditions, at all.
So - do we trust those records to be truthful, within the confines of the way he was able to work, or not? The general consensus seems to be that we do.
As far as I know no one argues that in most of these institutions had terrible conditions for health. They were underfunded terribly so food and shelter were inadequate, and often the children worked very hard. We also know that as in many institutions for children, there was significant abuse, although not all students had that kind of experience either.
But we really just don't know that murdering kids was a common thing. There isn't really any reason, yet, to think that's the explanation. We will probably know more in a year.
So so far, new information here is really really minimal. And maybe a lot of people haven't been following it, though it has been prominent in the news for some years, as well as in drama and books.
So there is something very strange about the fact that at this moment, people are now burning down buildings, and pushing down statures, and calling out their neighbours on FB. It looks a lot more like other things that have been going on than it seems to be a real response to what's been found.