I agree 100%, but it makes a mildly interesting jumping off point.
My first question is: but what if they don't?
As the person who posted the quote, gonna be direct: no idea.
I have to say, I don't identify myself as a anarchist (maybe a bit of a sympathizer), yet I'm middle aged and finding myself a little dissatisfied by many things I see around me, so if I see people making the equation anarchist = degenerate, my immediate reaction is "yeah let's slow it down shall we."
Exactly. Of course they're capable of it. That doesn't mean they will. They have a lot of incentives to behave badly, and there's no way to eliminate them all.