Under international law, if an asylum seeker applies for refugee protections in your country, you have to assess their claim. Maybe they’re fleeing poverty, and you can legally send them back. But maybe they’re a Shia or Sunni who’s never held a weapon (no, they’re not all “killing each other”) with credible fear of persecution, and you’re required to protect them. The duration of the war or the religion of the combatants is irrelevant.
By the way, Latterly welcomes all points of view. I’d love for you to join us. Details here.