I think it’s a bit of both. Intuitively the comment you are responding to made sense to me. The thinking around it being, imagine literal nazis somehow taking over the US government and attempting to impose their authoritarian regime. It wouldn’t work. There is no appetite in the population for this.
I think it’s a bit of both in the sense governments do notice things for which the population has an appetite for. And they do grow this appetite and exploit it for authoritarian power grabs.
What makes this hard to see or hard to agree it’s happening is the people craving authoritarian measures and the politicians enacting them don’t see it as such. They simply see it as normal, moral, basic decency measures.