The OP is part right and part wrong. The dominant narrative of a few vocal AF members will downplay the anti-Christion rhetoric of the shooter or try to explain it away. A fair minded reader will see little difference between the shooter's rants and a few I've seen that earned multiple kudos.
However there really is no way to know if his bigotry was the cause or symptom of his hostility.
However there really is no way to know if his bigotry was the cause or symptom of his hostility.