Whether or not we can imagine a world where buying a gasoline-powered car or private telecom is considered a social good is less of an issue than whether we want to be able to incentivize those things should they become necessary.
It shouldn't be the IRS's business to reward people. If there is a reward for doing X then there should be a fund specifically for giving money to people in those scenarios completely independent of taxes.
Its much more transparent to say "we have a fund for X, mail us the required proof and we will send you a check", then it is to add layers and layers to the tax code. That also means everyday people are aware of what our representatives are arguing about and the dollar amounts being held responsible for the programs.
Then we get simple taxes without all of the itemizing nonsense.