It's not wrong, necessarily, the issue is that ICU admission rates even in young people are high enough that you need to flatten the curve an incredible amount

It's not wrong, necessarily, the issue is that ICU admission rates even in young people are high enough that you need to flatten the curve an incredible amount in order not to overwhelm ICU capacity. (They're not high in absolute terms, but an arithmetically small change in a small number can have massive effects)