The "left" is more likely to include both feminists and gun control advocates. But guns are pretty much the only reliable way that an individual woman can defend herself against aggressors. Sure, lots of things should happen to deal with violence against women, and there is no shortage of ideas about how best to do this, but in the mean time, in this imperfect world, women should not be at the mercy of whims of violent, loser men. Megan McArdle makes the point.
I'm hardly the first person to make this observation, but I don't know why it isn't noted more often: guns are the only weapon that equalizes strength between attacker and attacked. It's the only time when men's greater speed, strength, and longer reach make no difference; if you pull the trigger first, you win.
This is an enormous social advance. I am all for strengthening the social contract (and law enforcement) so that fewer men commit rape, assault, or robbery. But until human nature has improved so radically that grievous bodily harm has passed from living memory, I don't understand why more feminists don't push for widespread gun ownership.