The proper language would be "efforts by global organizations such as the United Nations to undermine international sovereignty."
Really, any UN organizations beyond the central one of nations getting together and talking are interfering with nations' internal business and telling them what to do or not to do. Within the first 10 yrs of its existence the UN was shown to be nothing, especially with the "resolution" of the war in Korea...the war that was never ended. Great work, UN!
Anyone who wastes their time with UN bashing is just trying to find another enemy. It has zero power and little influence, as nations still do what they want to do. The UN's pronouncements are either pointed to as good (when they support that position, like freeing Kuwait) or ignored or dismissed as the work of unfriendly nations (when they are against it, like Iran's nuclear program).
Quite simply the UN never has and never will work. Imagine if your local police department and courts were replaced by you and your fellow citizens. Would you really respect the authority of people who are literally the same as you?