They never were. Letting the fox run the hen house will always fail. Once you realize all of the UN and analogous environmental orgs/events (IPCC, COP, etc) are politically/corporate managed, and do not align with the scientific consensus, you realize they only exist to greenwash and legitimize for-profit interests, and inaction.
It’s cute you think fascists care about borders, and that the US doesn’t have a history of persecuting foreign political opposition.
What are you, 12?