Ideas can kill millions. Infanticide as a sport is an outrageous idea, genocide is an outrageous idea. Ideas and beliefs are real and exists as such in our human experience.
I didn't said that any adjective cannot be applied to an idea. It is moral judgements that mustn't. You'll risk to damage your ability to think clearly, if you allowed your moral to judge ideas. Judge actions if you must, but not ideas.
No, it is always people who kills people.
> Ideas and beliefs are real and exists as such in our human experience.
Yeah, but they do not kill. It is always people. Do not blame ideas for the faults of people.