Unfortunately, the tax laws supporting these charities have effectively silenced them when it comes to fighting for those social values that are being twisted to our ruin.
Worse, the number of tax-exempt "charities" which are funding everything from green groups to the various "health and safety" causes that are instead focused upon institution regulations favorable to their parent corporations are legion. Rockefeller, Ford, Carnegie, Pew, Jones, Hewlett, Packard, DuPont, Gates, MacAllister... these heirs of industrial giants are today witless thugs hiding behind "charity" to shelter their spending money, their employees' work dedicated to destroying this nation for fun and profit.
Until you can tell me how you are going distinguish true charity from tax-exempt racketeering in the law, I think it time for the charitable deduction to go. True charity will return when we limit government spending and retain the cash with which to do that work.