Well why is a countries system so broken that you need these churches to do charities.
Every time we propose the government spend money on something we must remember where that money comes from and seriously consider if it's justified.
That's not to say we can't have differing opinions on where precisely to draw that line, I think debate on that is good and healthy, and it's important to strike a good balance between too much and too little social welfare. But it's also better to have a more efficient and effective solution than to have one that "feels" better.