I do not think you know the case well enough to have opinions. Having said that, I agree with your other point. What does the phrase “having said that” mean in the given text?

The correct option is "despite what I have said".

Understanding the Phrase "Having Said That":
The phrase "having said that" (or "having said this") is a common transitional expression used in English to introduce a statement that contrasts with or qualifies what was just said. It functions similarly to terms like "however," "nevertheless," or "despite that."

Contextual Analysis:
1. First Statement: "I do not think you know the case well enough to have opinions." (Here, the speaker is critical of the listener's authority or knowledge on the case.)
2. Transition: "Having said that..." (This signals to the listener that, in spite of the criticism just expressed, the speaker is about to present a contrasting or concessionary point.)
3. Second Statement: "...I agree with your other point." (This is a point of agreement, which contrasts with the criticism in the first statement.)

Evaluating the Meaning:
If we substitute the correct phrase into the sentence, the meaning remains perfectly clear:
"I do not think you know the case well enough to have opinions. Despite what I have said, I agree with your other point."
This substitution highlights that, although the speaker holds a critical view of the listener's overall knowledge, they still agree with the listener's other point regardless of that criticism. Therefore, the phrase "having said that" means "despite what I have said".