I thought assuming good faith does not mean you have to sympathize. English is not my native language and probably that's not the right concept.

I mean, do not put the others into any stereotype. Assume nothing? Maybe that sounds better. Just look at the hand you are dealt and objectively think what to do.

If there is an arsonist, you deal with that a-hole yourself, call the police, or first try to take your loved ones to safety first?

Getting mad at the arsonist doesn't help.