We can't strategically walk away from South Korea. To leave would be a horrible overreaction to the idiocy of a politician.
Redeploying closer to Taiwan might start a war with China, by the way.
"Redeploying closer to Taiwan might start a war with China, by the way."
Um no, it would be a reaction to China deploying offensive misilles and forces across from Taiwan. The Chinese deployments haven't caused a war and likewise our repositioning to Guam and Okinawa haven't either.