Response and responsibility

I’m not sure how to respond to person N.

Here is what occurred. L posted on social media about an issue that caused debate. N posted a (in her words) joking reply. L responded and shut the response down. N contacted me to ask my opinion.

My real opinion…her response was ignorant and racist. It was not appropriate or funny. I’m glad L shut it down.

However I recognize that while someone may be asking my thoughts that doesn’t mean my offering them is a good idea.

My model
C :n asked my opinion
T: I don’t want to tell her the truth but then I don’t want her to think I agree with her either
F: disgust
A: ruminate
R: feel disgusted with myself for not just saying what I really think

Help! And thank you