I agree there is not nearly enough evidence to draw a conclusion. That's why I said, there have been no controlled studies either way at this point so no one can say for sure.
All we have is anecdotal reports, plus the fact that significantly more COVID patients die on ventilation than the average pneumonia patient who is [invasively] ventilated.
Since doctors were ventilating patients at the same O2 saturation points as usual, we can say at least that something is markedly different with COVID induced ARDS from typical ARDS that makes invasive ventilation particularly insufficient, if not actively harmful.
In case you haven't seen it, those studies indicating a higher rate of infection (the ~5% ones) are almost certainly wrong.
You seem to believe that the ventilators are causing deaths. There's plenty of evidence to show that once Covid-19 takes hold it is particularly viscous because of the number of things that it does to the body.
Some of the things that go wrong in some cases include: lung damage (obviously), kidney damage, liver damage, strokes, encephalitis, seizures, heart damage, meningitis, bloody diarrhea etc[1].
I agree the death date of people on ventilators are horrifying. But I don't think there is much evidence that ventilators are causing that rather than being administered to people who already have serious symptoms.
[1] https://www.sciencemag.org/news/2020/04/how-does-coronavirus...