UN driven by US now? obviously it is not the fact. The fact is that China and Russia use their VETO so often to make right thing wrong.
US just let China and Russia do what they want in case they don't disrupt US business.
Number of resolutions vetoed by each of the five permanent members of the Security Council between 1946 and 2007
Most recent event China and Russia exercised their veto power
July 8, 2015: Russia vetoed a resolution condemning the Srebrenica massacre as a genocide
May 22, 2014: China and Russia vetoed a resolution condemning the state of Syria
https://en.wikipedia.org/wiki/United_Nations_Security_Council_veto_power
Nothing wrong with that veto imo.
This chart actually shows that the US vetoes the most in the contemporary period, with Russia and China hardly vetoing anything in comparison.