Answer: Pirsig seemed to value art the most since he writes essays on Zen & Art of Motorcycle. I hope this helped since I'm not FULLY sure.
Answer:
4. It sets a tone of disdain for the enemy and how fed up Kennedy was with the war at that time.
6. The questions are meant to flare up a feeling of patriotism in the crowd. It's asking the Americans to stand up for their country.
8. He's explaining that if Americans are selfish and don't try to help their country and people that are less fortunate then them then nobody will be saved.
Correct me if I'm wrong but it's most likely the bottom one. I starts with saying it as in I did this etc. etc. and ends with there's you instead of I. Sorry if it doesn't make sense but I hope it helps!! :)