What questions would you ask to a US citizen who feels that it's okay to display the Confederate flag? (Please read the details.)

As a result from this conversation, my nephew has agreed to meet with me next weekend to discuss this hot topic. My goal is to find out why he feels that this is acceptable.

A list of questions has been prepared, but there must be more. If you had this opportunity, what would you ask?
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For background information, he is in his early 30s, white, spent his whole life in Virginia other than occasional travel outside of the state/US, graduated from college and is working on his master’s degree.

His response to my request to meet with him was, “I’d love to have a conversation about it and apologize in advance if I get a little fired up during the discussion. Ultimately, for me, it boils down to dissecting the real race issues in the country instead of taking abstract action with no empirical results. I look forward to doing into it more in depth this month!”

NOTE: This is being posted in Social as I am looking for opinions. It would be beneficial to have the responses thought-provoking and not dismissive.