Because:
1. We aren’t “in” Ukraine so we can’t leave— they are fighting for themselves, and
2. It is unlikely they will give up and submit like the ANA because of their morale, which
3. Is evidenced by this POW, knowing he is about to be executed, saying “slava ukraine” milliseconds before having his brains blown out by Russian war criminals https://twitter.com/protasm19751/status/1632740245237030914