You're misrepresenting the data, and also it's not refuting my point which is: 'children get COVID and spread it' - which they do, unambiguously.
The data was 5 months, starting in January, long before COVID started.
The comparable time-frame was short and it's only a very rough comparison - 'everything' about policies in nations, rates of infection (time of onset) would have been different.
Since then, we have much more data, and we know unambiguously that children get and spread COVID.
That 'people at protests' were or were not super-spreading is besides the point unless you're trying to suggest that 'COVID does not spread' at all? Those events took place outdoors during the summer among healthy people. Since September, with colder weather and more indoor activity (and the start of school), the growth of COVID has been quite spectacular.
550 000 Americans have died from COVID. It's affected everyone.
But all of this is moot: COVID is dangerous not because of individual effects, but because of how rapidly it spreads.
The thing that makes COVID a pandemic is the easy by which it gets into the population.
Because one group is much less likely to die is not hugely important if they serve as vectors for the disease which kills others.
From an epidemiological perspective, kids spread it almost like adults, and therefore 'are a cause' almost like adults. It's great they don't die, but that's only 1/2 of the story.
We have to make sure to keep children from getting infected, just as we do adults.
In short: children should be vaccinated, we may do them last but we can't ignore the population and assume 'it will be fine because they won't die'.