War is pretty much dead forever in the western high income countries and an exclusive issue of poor developing countries you will never live in like Somalia, in terms of being actively involved as a target. Being frightened of war is about as real and helpful as being frightened about malaria or dying of diarrhea, famine and the hantavirus.
If you live on the right part of the world, there is about as much reason to be afraid of war as there is to be afraid of vampires and zombies. It is nothing of immediate concern because it is not a reality that can become true for you by any realistic chance. That someone fucks up your life can happen very well under certain circumstances on the other hand. Internet forums did of course never kill people, people kill people. Killing is not very popular though, fucking you up is. It is all about how the things you do change your odds.