There is always more evil then there is good. As the evil will fool the good in thinking they are not evil. And now evil has grown to a global scale. It's no longer a little dictator who messes up a country. It's now becoming a team of yes-men dictators messing up a continent. They all have their price to say yes. And with evil having 99% of all the wealth under their control they just buy yes-men for peanuts.

Why does trump want a wall?
Maybe he is in on the secret about destabilizing South America?

Venezuela are Honduras that's already destabilized.

To me it looks like we need a few very wealthy people who are actually NOT evil. Do these even exist? I hope they do, but I don't really see it.
IF they exists, they probably also just keep sitting on their wealth.
It takes courage for them to do the right thing as well. And as they are surrounded buy evil with more wealth it's probably not a real option for them to even consider courage? How does that even work when you are a billionaire?
I'm not very positive, as I don't trust any front running politicians. As everyone has a price they all can be corrupted, yet we really need a way out of this. And for that we still need politicians. It's a huge catch22.

Ok time to think of options
How to remove 50% of all politicians?
Investigate corruption, and remove the most corrupt ones first.
But before that, make a law that doesn't allow known corrupt officials to be in ANY politic or corporate position ever again.

Then clean up the mess.