I am of course assuming that he wouldn't be extradited to the US, in which case not surrendering was the correct choice.
How can you make this assumption given that he was extradited for the exact reasons he mentioned?
Which was still bad enough to deserve a written condemnation from the UN.
The US simply ignores all these reports by various international oversight organisations such as the UN, or the ICC (there are strictly per definition no war criminals among US citizens isn't that great).
So yeah, ending up there, especially after you pissed them off, is something to be avoided at all costs.
Doesn't mean that someone is deserving of any and all treatment that is strictly "not as bad" (because that's a pretty friggin low bar).