What is, is the majority opinion says that under today's international law Russia's invasion was illegal.
"And only five Nations have authority. The irony is that more Nations would be worse. lol"
Worse you say, and Yarvin Trump et al say democracy is messy. The UN is what it is as your country is as it is. You have a constitution which your president is doing his best to diminish, and which likely could be improved upon. The UN has a charter which could no doubt in some way be improved upon.