Vic, I am atheist but you are making bigoted statements. If someone had made that statement about Islam. Both  Islam and Judaism also have a sky god in the heavens above at their root.
As far as removing tax emptions from schools, churches non profits and charities, yes we can, but to pick one sector and not another would be unfair. Charities do poltical lobbying. they are allowed to spend 15% of there income on lobbying for specific legislation and 100% on general issues, including poltical issues adovacy. US colleges and universities are vastly expanding property ownership because they almost never pay full property taxes allowing them to out compete private property owners. Mos to the land Harvard downs has nothing to do with education, if they put up a piece of property for lease they are able to do it chaeper than a private property owner next door due to the tax advantage.