"to gradually and peacefully transition the human race into a singular government system, this change needs to happen soon, very soon."
hell no. It's hard enough to get things changed at your local city hall, let alone some "world hall" in some distant country. history is full of governments abusing people, and the more powerful they are the worse it is.
Yes, further centralizing political power would be a disaster. If you think people in Ohio are going to give a shit about what some politician in Prague says you might be in for a surprise.