Nobody said a banana company overthrew a government but rather they colluded with folks who could. And it was an obvious choice a they were hugely influential and well connected as the country's largest employer. They also controlled some of the only infrastructure in the country in the form of railways.

The CIA was involved because because it had a vested interest in keeping leftist governments out of the Americas. The CIAs involvement as well as the US interventionist policies in Central America are fact. They are both well very well known and documented. They also largely continued right up through the 1980s(See the Sandinistas, The Iran Contra Affair.) Hello?

Here is a nice time line outlining different affairs:

https://www.geopoliticalmonitor.com/us-interventions-in-lati...

and the the Guatemalan incident being referred to above is documented on the CIAs own website:

https://www.cia.gov/library/center-for-the-study-of-intellig...

Your own comment is largely nonsense of course.