Would it make economic sense to break up monopolies created by governments? Why or why not?

It would not make economic sense to break monopolies created by the government. This is because there is a particular field that the government cannot let other investors have a share in; these include areas like the supply of firearm and human needs such as clean water. If the government breaks up the monopolies it has created in the offering of such services, only a small percentage of individuals will get to benefit out of it, thus not even making an economical sense.