What effect would it have if we (the US) finally were able to have a free and open debate about whether the UN has a value to us?

Personally, I think that the UN is way past it's prime and either needs a total revise or we need to get out. The only thing that it exists to do today is to pull the US down, rather than building everyone up.

Before this, anyone who brought up getting the US out of the UN was immediately dismissed as a right wing nutjob. Now, lots of people see it's weakness.