Guns don't kill people there inanimate objects with no emotions or feeling's, people kill people. After all who's pulling the trigger
Guns can be used as a force for good. As they can keep goverments in check as it's harder to have an authoritarian or facist state when you got a massive group of angry armed civvies, and they can protect you and your family from home intruders, and guns may be used as tools for good protecting your crop from wildlife but also they can be used as a force for bad as people may use to guns to fight one another in everyday conflicts and some people can't be trusted with a gun as they could be a danger to themselves and others overall guns can be bad things and good things but I believe the positives outweigh the negatives your always going get crazy nutters endangering themselves and others someway or another regardless if guns are legal or illegal
But there are guns. The "world with no guns" already doesn't and won't exist. So our options are to disarm ourselves while other people have guns, thus leaving ourselves vulnerable to any bad actor, or, have a gun and be easily able to defend ourselves.
And, for the record, that's an extremely reductive take on what guns are used for anyway.
You are understandably uncomfortable with violence. That's okay, but wishing it wasn't there and saying it shouldn't be so doesn't ever address the problem. Likewise, asking that everybody else conform to the same mindset is just selfish and naive. You don't seem to realize how many people you're speaking for, and how wrongly you're speaking for them.