It was also a "complicated issue" for 300 lawmakers of Korea on the night of the martial law declaration, especially since they had so little information and had only hours to act. For all they knew, Yoon could be starting a war, or sending troops to murder everyone in the capitol. Those who jumped the fence on that night did so not knowing when (or whether) they could go home.

Enough of them did, and that's why Yoon's insurrection failed.

Biden had his sweet four years to ponder on the matter, and the worst that could realistically happen to him was that people would say mean things about him. He has no one else to blame for his failure to send Trump to prison.