There was, clearly, an increase in child abuse during lockdown. Looks to have been about 20% and each one of the statistics is a real, abused child. Child abuse is horrific and no reasonable person would wish an increase. It is also far from the only way that children suffered during the pandemic.
On the flip side, although young children were the least at risk of serious illness through Covid, some did die. Others lost parents. As of the start of this year, at least 70,000 children were still suffering from long Covid symptoms (some of whom have debilitating symptoms).
Much of the above might have been prevented by swifter or longer lockdowns. It is likely that, without lockdowns, while we may not have seen a rise in child abuse, there would have been more illness and death among children.
Reasonable minds will differ over the necessity and particulars of lockdowns but I think anyone with two brain cells to rub together, and who hasn’t tipped over to extremism, understands that the decision comes down to a balancing of harms, including harm to children in all its forms.
That is why, to me, your post seems cynical in the extreme.