Why shouldn't they be similar? Seems reasonable that a "legal person" should be subject to similar taxes as a real person. And from a fairness standpoint, it doesn't seem fair that Google is taxed 11% on $billions of income after expenses while I get taxed 25% on $thousands of income sort-of-before expenses. Fairness is not always best for society, but it does seem like a reasonable default. In my mind, the default is that they should be similar, and any deviation from that requires a reason.

This isn't a very helpful comment. The parent presumably doesn't have the information to make a different assumption (or they would have already). Telling them to revisit their assumptions without giving them any additional resources to do so is unhelpful. Besides, the rest of us (me, at least) would like to know your reasons.