The UN Charter isn't real?

"Article 1 (2) establishes that one of the main purposes of the United Nations, and thus the Security Council, is to develop friendly international relations based on respect for the “principle of equal rights and self-determination of peoples”. The case studies in this section cover instances where the Security Council has discussed situations with a bearing on the principle of self-determination and the right of peoples to decide their own government, which may relate to the questions of independence, autonomy, referenda, elections, and the legitimacy of governments."

https://main.un.org/securitycouncil/en/content/purposes-and-...

International law is real. It has discernible content, people who professionally study it, and it does influence (however incompletely) the behaviour of the world’s governments

This idea that law can’t exist if it doesn’t have a clearly identified enforcer is very modern-a lot of traditional/customary law (e.g. the Pashtunwali in Afghanistan or the Kanun in Albania) never had a clear enforcer but that doesn’t mean it didn’t exist, people sometimes paid attention to it, it influenced how people behaved even if they sometimes got away with ignoring it

Failure to understand this is a primary cause of a lot of unneeded consternation

Then it's just "might makes right" and you pick a favorite imperialist to cheer on to invade their next peaceful neighbor.

Sorry, but I don't buy into that imperialism shit.