Actually the argument is blindingly obvious, and I've alluded to it. But to spell it out:

A government granting themselves, and all future ministers, the ability to control and log who uses what websites opens the door to all sorts of possible future abuses, while practically solving very little.

Also, your opening "argument" was that this is good because too many people are morons. It's an interesting one from someone who claims to want substance over belittlement.

Yet, you're cheering on this shit show? You're either seriously damaged, or a troll. Which is it?