I sympathize with the author, the path to a green card is ridiculous. [1] But that's where my sympathies stop. It's not a hidden process either. If staying here matters to you better work tirelessly to put yourself on a path to permanent residency and you better be the one to push it daily or it won't happen. Here we have a highly educated, Ivy Leaguer with a LAW DEGREE , who didn't. But about 500,000 people a year d…
I think you overestimate the straight-forwardness of this. Option #2 means including economic incentives in your relationship ("I better rush towards marrying someone, lest I get kicked out!"). Option #3 is very restricted -- if you are on a non-immigrant visa (e.g. student visa), then the simple fact of applying for the lottery (and thus signalling immigration intent) will likely make you ineligible for a renewal.
I think it's fair to complain that this option doesn't exist, I'd like it to exist. But it doesn't and options #1-3 are what the author had to work within, yet chose not to pursue any of them.
If he still wants to get in, once he's back in New Zealand, he's free to continue pursuing permanent residency. Going back to New Zealand doesn't prevent him from continuing to pursue these options. But he simply doesn't have the tenacity to do it, not while he was in the U.S. and probably not once he returns home.