I strongly disagree with your logic. If I understand you correctly, you believe that if you speak out against something you disagree with and a nutjob who agrees with your position kills someone over it, you're to blame. Meanwhile if you speak up for something you agree with and a nutjob who disagrees with you with your position kills someone over it, you're to blame. So really, the only way you can not be responsible for the death of another human being,(other than by not taking part in it directly, of course) is to keep your opinions to yourself at all times. Is this what you believe or am I completely misunderstanding the point you're trying to make?