You haven't lost your humanity, just that exposure to the evil has touched on the deepest instincts of your mind - the uncontrolled animal aspects that come from survival instincts. But also love.The love for your fellow man that is another deep instinct that comes wanting to protect those you love. Do not despair or doubt your humanity, just try to temper it with judgment, and focus on trying to bring justice that all can see is right and proper, and your mind will mend itself. Good luck. It's not an easy path, and you are dealing with some of the hardest things to have to deal with.
You have to be careful with some of them though. The hard core of the SJW feminist leftist cult is just that - a cult. It is so close to religious thinking you risk turning them into martyrs and stirring them up further. (am not getting into what the inner circle believe, just the brainwashed followers) Yu would have to deprogram the cult first before you execute. And that's not easy when the MSM is part of the programming.