If someone actually set fire to the building, I'm sure we would be all in on helping finding them and getting some retribution- just like what happened in 9/11.
But I don't recall anyone donating money to clean up or rebuild the actual structures.
Again, for this particular situation, we are also bound by the Constitution, which should prevent us from donating money to a church. Again, while I'm totally for people donating money, and who knows, I may, too. But I'm not for our government doing it.