I agree entirely.
The Belgian schools were closed for much less time. I did my doctorate in Belgium, so I can tell you that the healthcare system in that country has much greater capacity. The system is able to absorb the cost. The schools reopened before the end of 2020, and they were able to measure the impact of the seven-week closing on their children. There were super data, which we do not have.
So it is certain that our system's weak capacity harmed our children. They paid the price, and they are still paying it today. I would really like people to bear this in mind: it is far from over. Adults have moved on to other things, but children are still suffering.