> Leaving a power vacuum, like dismantling the UN, will just open the door for places like China to step in.
The UN has no power, so dismantling it cannot leave a power vacuum. The US abandoning its overseas policies, that'd leave a power vacuum, because the US has power and projects it. But the UN has no power - it's some UN member states that have power.
Case in point: the general assembly demanded Russia withdraw all military forces from Ukraine. But what are they going to do about Russia ignoring that demand? Nothing, they're powerless.
The UN has no power, so dismantling it cannot leave a power vacuum. The US abandoning its overseas policies, that'd leave a power vacuum, because the US has power and projects it. But the UN has no power - it's some UN member states that have power.
Case in point: the general assembly demanded Russia withdraw all military forces from Ukraine. But what are they going to do about Russia ignoring that demand? Nothing, they're powerless.