I'm not even sure what you're trying to say.

American became a colony because the people who lived there already were vastly technologically inferior to the Europeans who wanted it for themselves. It stopped being a colony when the descendants of the original colonists got sick of being ruled and taxed by a foreign king.

The change on regime was the result of a bloody revolution. Whether or not the regime change was ultimately benificial to the average American is not under debate. Power corrupts, and history is cyclical. The point I'm making, and the only point I'm making is that if you want to enact a regime change, a bloody revolution is a proven way of achieving it.