You sound crazy. The UN is irrelevant, we agree on that much. The US has plenty of credibility as long as a moron like Obama isn't in the White House. Removing the Chinese government is a hard problem (but their recent actions in the South China Sea are enough provocation that several of our allies could insist we fight China -- not to mention that they inflicted COVID-19 on the US, which if deliberate was an act of war using weapons of mass destruction!) And Israel needs no fixing -- it is the neighboring countries which have been trying to genocide the Jews for 1,400 years that need to be stopped permanently.