That's a totally reasonable position. There is a line that needs be drawn somewhere. Some people will consider the benefits here outweighing the risks while others might conclude the opposite. That's fine. For example there isn't a current recommendation in the US for boosters for the majority of the healthy population for exactly those reasons.
But claims here like covid vaccines "certainly will not benefit" children are quite clearly untrue. Or taking statements like "children are already the group least likely to be harmed by covid" to mean that they shouldn't be vaccinated even if the likelihood of vaccine complications is even lower.
The fact is that children are harmed by covid and that vaccines will reduce the risk of that harm. Is it worth it overall? Maybe, maybe not. That's a risk analysis question worth having. But acting like we're in a hysteria because of recommendations to get vaccinated drawn from studies showing it makes sense is itself hysteria.