Now that we've heard both opinions, it's clear to me that you are wrong and I am right.
Congress can't grant a privilege where the constitution has already spelled out the right.
So they collect the offering to God in the offering plates, they place them on the altar, and.....out of a side door in front of everyone walks a man in IRS garb up to the altar. He starts rummaging through the money they've just dedicated to God, they stare at him unbelieving his audacity, and he says to them, "I don't care which God you gave it to....this Federal god is walkin' out with some of it. Try to stop me."
Hardly. If you take some of what I intend for a certain purpose, then you hinder my intent. If my intent is hindered, then it is not free, but instead is restricted.