Either we decide we don't have to worry too much because chances are low that those attacks ever affect us, and we have all this military power stuff,...
...or, since it's mostly related to Saudis & co – vs – Iran & co – vs – Zionists & co, and we know some countries are still keen on selling non defensive weapons, let's not talk too much about religion.
Many extremists can be found on social networks (not even necessary to go on Darknet) and everyone can challenge their views... But they also can challenge ours.
Studying a religious issue like the one about Houthis (close to Iran) who's "subversive" influence is feared by jet-setting "religious" governments is revealing to anyone with a sense of fairness with a minimum of curiosity on enemy's standpoint.
First there are mutually accusing fingers and adamant idealists. Before war there's a chance to appease tensions. After war has started, slightly more difficult...
If religious people believe in a loving god, they'll commit to a system that works so fine that everyone wants to be part of it. If this system is religious, it won't need no weapon to convert anyone.
If (Saudi / Israeli )jet-setters are the blessed ones, let them keep going. If their happiness could be made of way less money, they'll want to live a simplier life so nobody will blame their "arrogance" and call it all an unfair system.
Healing will be slow, but let's remember how everyone recovered from WWI / WWII and take advantage of internet.
(This an ever evolving opinion...)