The OP actually said something nearly opposite to that…
> Without shame, many people unfortunately need an authority figure to step in and moderate their behaviour.
This is an argument against relying on authority figures to replace the role of shame and implicit social contract. I honestly don’t know how they could have made that more clear than when they continued with this:
> It will likely result in people reaching for a paternal “strongman” figure and a subsequent slide into (probably) fascism.
Again, the argument is that _without_ shame and a shared social contract, the replacement by explicit state authority to moderate harmful behaviors drifts towards fascism.