I wish this were true but they get paid by taxes. Besides, there are few things more unpleasant than having your hard earned money taken away from you, regardless of how it happens. I don't think it takes fancy paperwork to make people oppose it.
If taxes were filed automatically, honestly, I'd pay no attention at all to them, but having to sit once a year an actually look at the amount I paid, does get me to think about taxes and what they go towards, at least a little.
Also, republics are “anti-tax” in word and pro-tax in practice, as is the American way. When it comes to particularly republicans, anti-tax is code for removing social safety nets. They want taxes if it pays them, or pays the right contractors, or funds the military etc but when those tax dollars could go to social welfare they suddenly think it’s time to trim the fat.