What benefit would that bring?
The action of last month, which is the fault of the Obama administration, not our UN membership, now haw the force of international law.
Why create an environment where that is repeated again and again?
Why not control them by the power of the purse, rather than turning them loose with no control ?
The U.S. does not need to belong or support and organization which consistently votes against the U.S. and it’s interest.
Learn it.