Separate paths are a part of history. You can't make everyone agree on everything. Sometimes the different paths are fought intellectually, sometimes with war. It is a part of our history and always will be
Not only that, but the wealth and technology we have today was created by different people and groups in different independent nations on all sorts of different paths and different levels of cooperation. That's how things work, and everything we have today is a result of that
Some global organisation swooping in at the last minute claiming to be qualified to control everything, simply isn't. It can't be, because no central organisation or government has actually ever worked for anything