> shows that you understand your initial statement to be a dog whistle, and that upon reflection, you decided not to say the quiet part loud.

You seem to be making some very strong assumptions about intent [E] and have been since your first response in this thread. As an outside observer, those assumptions don't seem supported by the conversation up to this point.

Instead of assuming this person is strongly biased and bigoted, perhaps can you instead assume they simply did not make the point they were trying to make as clearly as they would have liked, and thus revised their statement accordingly?

Something something positive intent and the like. Assuming negative intent when there's very little signal to support that assumption speaks more to your own prejudices and biases than anything else.