First off, you're moving the goalposts a bit here. No one claimed that the death rate for people under 20 was anywhere near that of older age groups.
Your assertion that "babies are in fact immune" is demonstrably false: https://data.cdc.gov/NCHS/Provisional-COVID-19-Death-Counts-... shows 20 deaths for children under 1 year old. Presumably many more than that were infected but survived (unfortunately covid.cdc.gov is timing out for me right now and a quick search didn't give me infection rates for that age group).
Yes, the number is small compared to cases in older people. But "babies in fact are immune" is in fact the same kind of misinformation you're railing against.
Remember you're dealing with a very noisy, FP-prone test, and there have been millions of tests by now. At those levels there are bound to be some babies that tested positive and then died, so you can't infer from it that COVID actually killed them.
To put it in perspective, according to the UK govt's own analysis, it's very likely that all currently reported positive infections are false positives!
Your assertion that "babies are in fact immune" is demonstrably false: https://data.cdc.gov/NCHS/Provisional-COVID-19-Death-Counts-... shows 20 deaths for children under 1 year old. Presumably many more than that were infected but survived (unfortunately covid.cdc.gov is timing out for me right now and a quick search didn't give me infection rates for that age group).
Yes, the number is small compared to cases in older people. But "babies in fact are immune" is in fact the same kind of misinformation you're railing against.