Isn't that basically a revolution?

Pretty much.

It's a bit risky though, look at all the past revolutions that either failed or let something worse take control.

The Roman revolution against the Equestrians, but you know the end to that story. The French Revolution, but Napoleon was considered a tyrant. The American Revolution turned out good, but now it's kind of shitty.

The French Revolution wasn't all that good, mass executions and all, then you have he Bolshevik one - can't really call that a good revolution.

Plus the whole close-to-nuclear-war thing in the cold war wasn't fun..

Then you got the chance of some far right/left wing wankers taking over.

I can't think of anything I'd wish for more.

The system is dynamic, it has been changing. Every amendment to the Constitution is a huge change in our system. If we were to switch systems it would only provide more corruption in my opinion, because the ones making the decisions would be the already corrupt politicians, or the mislead general public.