I think there’s a difference between “Most of the IRS tax code is reasonable” and “Most of the instances where the IRS tax code does something are instances where it does reasonable things.” Not all parts of the tax code are used equally often. Furthermore, most unreasonable instances of a lot of things will be rare as a percentage of the whole because there is a large set of uncontroversial background uses. For instance, consider a completely corrupt politician who takes bribes—he’s not going to be taking a bribe for every decision he makes and most of the ones he does make will be uncontroversial things like “approve $X for this thing which everyone thinks should be approved anyway”.
I think there’s a difference between “Most of the IRS tax code is reasonable” and “Most of the instances where the IRS tax code does something are instances where it does reasonable things.” Not all parts of the tax code are used equally often. Furthermore, most unreasonable instances of a lot of things will be rare as a percentage of the whole because there is a large set of uncontroversial background uses. For instance, consider a completely corrupt politician who takes bribes—he’s not going to be taking a bribe for every decision he makes and most of the ones he does make will be uncontroversial things like “approve $X for this thing which everyone thinks should be approved anyway”.