That would've been an awesome speech, HG, but I think speechifying is more Martha's style.
I think the whole stupidity of Clark actually contemplating leaving Earth is because they didn't have
time to think about anything. It all just happened really fast, the tests Ching put him through, being told he was married at birth, then the blow when he saw that message from Jor-El about Zara . . .
I think Clark was just floundering during that whole arc, and no one else could make the decision for him, but he wasn't really in a right mind to make the decision himself. His own character forced him, in his confusion, into making the decision to leave and help these people he didn't know, who he shared a heritage with nonetheless. That, and he was probably overwhelmed with the knowledge that he wasn't really alone in the universe--he wasn't the last living Kryptonian after all.
One thing that REALLY bothered me about the NK arc was that none of the NK-ers even so much as acknowledged the fact that Clark had been a citizen of Earth for decades, and therefore should not have to be subject to Kryptonian law at all, not to mention, he knew nothing of their laws anyway. If anything, that should've made the birth marriage to Zara null and void, I thought.
