Why do they need a firewall? Why do they need ACLs? Let's just go back to single-user operating systems with exFAT drives. If an individual expressly defeats

Why do they need a firewall? Why do they need ACLs? Let's just go back to single-user operating systems with exFAT drives. If an individual expressly defeats the point of any particular security mechanism, that's on them. But to paint this broad brush of "I know someone who does X which makes Y pointless, so Y must be meaningless for everyone else" is silly.