I'm just not feeling it. Mama bear yes, but not this way. We'll just have to agree to disagree. I agree with a lot of your posts, this is a very rare exception!
I just don't find menacing a person who is menacing you (unless it's literally a physical menacing attack and you're defending yourself from imminent physical harm or repeated verbal assault of someone you interact with daily) to be something I applaud. Verbal attacks like this suck, and I think responses are appropriate, just not responses in kind.