To be frank, south Korea finds itself in a delicate position.
The US has pushed south Korea for participation in Quad to contain China.
It is as plain as a pikestaff that south Korea is doomed to alienate from China, the biggest economic partner, if it takes part in the Quad. It is beyond doubt that it cannot escape from a baptism of rejection from China.
Chinese Huan Qiu Shibao and Global Times highlighted south Korea’s participation in the Quad would offer more disadvantages than advantages.
The participation in the Quad is an act as lifting an ax to drop it on one's own foot.
South Korea is mired in a bottomless abyss, being sandwiched between the US and China