Even if we both agree those things are bad that doesn’t mean that are opinions aren’t subjective. The people who try and do those things didn’t wake up in the morning and say to themselves “I’m going to do something evil today.” They consider themselves heros. That’s why those are subjective not objective.

You’re exact logic is the same as those who perpetrate those acts. They believe that their targets are the evil.

There’s a fair bit of space between sticking our heads in the sand and encouraging the suicidal to commit assassinations that we can operate in.