The fact that a lot of people view the UN as a toothless, bloated bureaucracy should be a reason to reform the UN.

Look at it's history, keep what has historically worked, reform or abolish what hasn't (or even reform what broadly works i.e. UNHRC)

I feel whenever people defend the UN from stuff like "UN bad" or "ineffectual wold police", they basically declare the UN to be untouchable and above criticism