This is regime change /that we know about/. Intelligence agencies haven't made a huge habit of discussing their covert successes.

> Venezuela has been hostile to the US, yet they are still there.

Yes, because the international response would be quite severe if the US decided to what - destroy Venezuela?

Foreign occupations and coups decimate countries who then have to deal with the effects for generations. The new regime is usually beholden to the powers that put it there (or the old one has to abide by the occupier's demands), permanently crippling the government or the economy or both. Many countries continue to suffer under the conditions created by their overthrowers, so maybe they share some blame but it's largely the longlasting effects of foreign incursions.

> You have to try harder if you want to blame their issues on the US.

It's really not that difficult to understand cause and effect here. If you destroy a country's economy, divide its people, cripple it's infrastructure, and install an authoritarian government, it's going to take a long time to recover.