system
Given the following post, respond as if you're commenting on Reddit:
human
[Pacific Rim] What exactly was humanity’s strategy with the Pacific Wall?

So humans decided to abandon the jaeger program because it was supposedly too costly, and instead build a giant wall around the Pacific Ocean.

Did they think that the kaiju would just come up to the wall and be like “screw this, I’ll go back into the ocean”?

Sure, the wall may delay a kaiju attack, but then what?

Eventually the kaiju breaks through, and you still have a kaiju to deal with.
gpt
"Fortress Earth" has some conceptual advantages when the politicians are debating where to spend money:

* workers come from local areas (Kaiju attacks have devastated the economy)
* power sources don't need to be armored, and can benefit from economies of scale
* weapons can be fixed in place, lowering costs and increasing potential size
* "walls" protect people by "keeping kaiju out" (theoretically)
* lower training/recruitment costs: "drift compatible" people are apparently rare and made a bad name for themselves with their antics.  It's easier to train people to sit in a chair and click a button, rather than pilot a giant robot with a mind-meld buddy

Also remember that the Jaegers were beginning to lose.  The pilots had gotten too full of themselves, and no one else had accepted that the Kaiju were getting bigger and smarter as time went.  The government needed to be seen doing something.  They just picked the wrong thing.